BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Ice Age Floods Institute - ECPv6.16.5.1//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-ORIGINAL-URL:https://iafi.org X-WR-CALDESC:Events for Ice Age Floods Institute REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:America/Los_Angeles BEGIN:DAYLIGHT TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT DTSTART:20250309T100000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST DTSTART:20251102T090000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT DTSTART:20260308T100000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST DTSTART:20261101T090000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT DTSTART:20270314T100000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST DTSTART:20271107T090000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT DTSTART:20280312T100000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST DTSTART:20281105T090000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260314T090000 DTEND;TZID=America/Los_Angeles:20260314T160000 DTSTAMP:20260205T202508Z CREATED:20260108T014937Z LAST-MODIFIED:20260205T202508Z UID:41266-1773478800-1773504000@iafi.org SUMMARY:Free STEAM Workshops for K–12 Educators - The Dalles\, OR DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/free-steam-workshops-for-k-12-educators-the-dalles/ LOCATION:Columbia Gorge Discovery Center\, 5000 Discovery Dr.\, The Dalles\, OR\, 97058\, United States CATEGORIES:Education,Workshop ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/IAFI-Logo-HighResSqx300.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260314T100000 DTEND;TZID=America/Los_Angeles:20260314T150000 DTSTAMP:20260205T204110Z CREATED:20260127T195743Z LAST-MODIFIED:20260205T204110Z UID:41379-1773482400-1773500400@iafi.org SUMMARY:Combined Chapter Hike – Escure Ranch / Towell Falls DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/combined-chapter-hike-escure-ranch-towell-falls/ LOCATION:Escure Ranch\, Washington\, 99125 CATEGORIES:Activity,Cheney-Spokane,Field Trip,Hike,Palouse Falls ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Logo-Cheney-Spokane-HighRes-Sq.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260320T063000 DTEND;TZID=America/Los_Angeles:20260322T210000 DTSTAMP:20260210T053739Z CREATED:20260210T053739Z LAST-MODIFIED:20260210T053739Z UID:41602-1773988200-1774213200@iafi.org SUMMARY:Sandhill Crane Festival DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/sandhill-crane-festival/ LOCATION:Othello\, WA\, WA\, 99344\, United States CATEGORIES:All IAFI,Booth,Field Trip,Hike,Lecture,Workshop ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Sandhill-Crane-Festival.jpg ORGANIZER;CN="Othello Sand Hill Crane Festival":MAILTO:othellocranefest@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260320T170000 DTEND;TZID=America/Los_Angeles:20260320T180000 DTSTAMP:20260216T045921Z CREATED:20260216T045921Z LAST-MODIFIED:20260216T045921Z UID:41696-1774026000-1774029600@iafi.org SUMMARY:Mega-Floods of the World - The Legacy of Dr. Bretz' Work DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/mega-floods-of-the-world-the-legacy-of-dr-bretz-work/ LOCATION:Ritzville Public Library\, 302 West Main Street\, Ritzville\, Washington\, 99169 CATEGORIES:Activity,All IAFI,Palouse Falls,Presentation ORGANIZER;CN="Palouse Falls Chapter":MAILTO:palousefalls@iafi.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260321T100000 DTEND;TZID=America/Los_Angeles:20260321T110000 DTSTAMP:20260212T043507Z CREATED:20260212T043507Z LAST-MODIFIED:20260212T043507Z UID:41653-1774087200-1774090800@iafi.org SUMMARY:Mega Floods\, Ice Ages\, Volcanic Eruptions\, Earthquakes\, and other things that could keep you awake at night but probably shouldn't DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/mega-floods-ice-ages-volcanic-eruptions-earthquakes-and-other-things-that-could-keep-you-awake-at-night-but-probably-shouldnt/ LOCATION:McFarland Middle School\, 790 S. 10th Avenue\, Othello\, Washington\, 99344\, United States CATEGORIES:Activity,All IAFI,Palouse Falls,Presentation ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/4384-8-85.jpg ORGANIZER;CN="Othello Sand Hill Crane Festival":MAILTO:othellocranefest@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260322T081500 DTEND;TZID=America/Los_Angeles:20260322T160000 DTSTAMP:20260212T052927Z CREATED:20260212T052927Z LAST-MODIFIED:20260212T052927Z UID:41662-1774167300-1774195200@iafi.org SUMMARY:Moses Coulee Field Trip DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/moses-coulee-field-trip/ LOCATION:McFarland Middle School\, 790 S. 10th Avenue\, Othello\, Washington\, 99344\, United States CATEGORIES:Activity,All IAFI,Field Trip,Palouse Falls ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Moses-Coulee-Ice-Age1.jpg ORGANIZER;CN="Othello Sand Hill Crane Festival":MAILTO:othellocranefest@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260324T180000 DTEND;TZID=America/Los_Angeles:20260324T193000 DTSTAMP:20260224T200639Z CREATED:20260224T194930Z LAST-MODIFIED:20260224T200639Z UID:41759-1774375200-1774380600@iafi.org SUMMARY:Dating Erratic Boulders: How Long Ago Were the Floods? DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/dating-erratic-boulders-2026/ LOCATION:Deer Park Library\, 208 S Forest Ave\, Deer Park\, WA\, 99006 CATEGORIES:Cheney-Spokane,Presentation ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Glacial-Erratics-Hwy-200.jpg ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260328T090000 DTEND;TZID=America/Los_Angeles:20260328T160000 DTSTAMP:20260221T065709Z CREATED:20260214T010409Z LAST-MODIFIED:20260221T065709Z UID:41676-1774688400-1774713600@iafi.org SUMMARY:Geology of the Tri-Cities Field Trip DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/geology-of-the-tri-cities-field-trip/ LOCATION:Richland Community Center\, 500 Amon Park Dr\, Richland\, WA\, 99352\, United States CATEGORIES:Activity,Field Trip,Lake Lewis ORGANIZER;CN="Lake Lewis Chapter":MAILTO:lakelewis@iafi.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260404T130000 DTEND;TZID=America/Los_Angeles:20260404T150000 DTSTAMP:20260212T060315Z CREATED:20260212T054710Z LAST-MODIFIED:20260212T060315Z UID:41667-1775307600-1775314800@iafi.org SUMMARY:Cheney-Spokane Chapter Hike – Palisades Park 2026 DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/cheney-spokane-chapter-hike-palisades-park-2026/ LOCATION:Palisades Park\, 2-198 S Rimrock Dr\, Spokane\, WA\, 99224\, United States CATEGORIES:Activity,Cheney-Spokane,Field Trip,Hike ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Palisades-Park-View.jpg ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260411T100000 DTEND;TZID=America/Los_Angeles:20260411T150000 DTSTAMP:20260401T165125Z CREATED:20260224T003540Z LAST-MODIFIED:20260401T165125Z UID:41749-1775901600-1775919600@iafi.org SUMMARY:Lower Crab Creek Field Trip—Saturday 11 April—10am to ~3p DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/lower-crab-creek-field-trip/ LOCATION:CMSP&P Bridge\, Beverly\, WA\, 46.83539588686751\, -119.93816967222578\, Beverly\, WA\, United States CATEGORIES:Ellensburg,Field Trip ATTACH;FMTTYPE=image/webp:https://iafi.org/wp-content/uploads/Karl-Lillquist-Portrait.webp ORGANIZER;CN="Karl Lillquist":MAILTO:outreach@geology.cwu.edu END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260418T090000 DTEND;TZID=America/Los_Angeles:20260419T160000 DTSTAMP:20260413T223721Z CREATED:20260328T222100Z LAST-MODIFIED:20260413T223721Z UID:41869-1776502800-1776614400@iafi.org SUMMARY:29th Lakeside Gem & Mineral Show - April 18-19 DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/29th-lakeside-gem-mineral-show-april-18-19/ LOCATION:Benton County Fairgounds\, 1500 S. Oak\, Kennewick\, WA\, United States CATEGORIES:Lake Lewis,Meeting ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Lakeside-Gem-Mineral-Club-Logo.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260430T190000 DTEND;TZID=America/Los_Angeles:20260430T203000 DTSTAMP:20260414T202739Z CREATED:20260413T221621Z LAST-MODIFIED:20260414T202739Z UID:41939-1777575600-1777581000@iafi.org SUMMARY:Norwegian Scenic Routes - An Ice Age Floods Trail Model DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/norwegian-scenic-routes-an-ice-age-floods-trail-model/ LOCATION:White Salmon Valley Community Library\, 77 NE Wauna Ave\, White Salmon\, WA\, 98672\, United States CATEGORIES:Columbia Gorge,Presentation ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Rand-Pinson-Interpreting-Landscapes.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260503T100000 DTEND;TZID=America/Los_Angeles:20260503T160000 DTSTAMP:20260411T193428Z CREATED:20260410T161651Z LAST-MODIFIED:20260411T193428Z UID:41913-1777802400-1777824000@iafi.org SUMMARY:FIELD TRIP INTO MOSES COULEE\, May 3rd\, 2026 DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/field-trip-into-moses-coulee-may-3rd-2026/ LOCATION:Jameson Lake WDFW\, 441 South Jameson Lake Road\, Waterville\, WA\, 98858\, United States CATEGORIES:Field Trip,Grand Coulee ATTACH;FMTTYPE=image/webp:https://iafi.org/wp-content/uploads/gombiner-joel.webp ORGANIZER;CN="Lower Grand Coulee Chapter":MAILTO:grandcoulee@iafi.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260504T190000 DTEND;TZID=America/Los_Angeles:20260504T203000 DTSTAMP:20260429T172041Z CREATED:20260429T172041Z LAST-MODIFIED:20260429T172041Z UID:41988-1777921200-1777926600@iafi.org SUMMARY:Dr. Megan Anderson "What happens when you crash Iceland into North America? Mapping Washington's ancient tectonic pileup" DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/dr-megan-anderson-what-happens-when-you-crash-iceland-into-north-america-mapping-washingtons-ancient-tectonic-pileup/ LOCATION:Bellevue College T building room 126\, 3000 Landerholm Circle SE\, Bellevue\, WA 98007\, Bellevue\, WA\, 98007\, United States CATEGORIES:Activity,All IAFI,Meeting ORGANIZER;CN="Puget Lobe Chapter":MAILTO:pugetlobe@iafi.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260505T190000 DTEND;TZID=America/Los_Angeles:20260505T200000 DTSTAMP:20260416T033748Z CREATED:20260324T052506Z LAST-MODIFIED:20260416T033748Z UID:41858-1778007600-1778011200@iafi.org SUMMARY:Mysteries of the Channeled Scablands and the two Detectives who Solved it. DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/41858/ LOCATION:Richland Library\, 955 Northgate Dr.\, Richland\, Washington\, 99352 CATEGORIES:All IAFI,Lake Lewis,Presentation ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/250901-scaled.jpg ORGANIZER;CN="Lake Lewis Chapter":MAILTO:lakelewis@iafi.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260509T074500 DTEND;TZID=America/Los_Angeles:20260509T230000 DTSTAMP:20260501T213253Z CREATED:20260501T213253Z LAST-MODIFIED:20260501T213253Z UID:41994-1778312700-1778367600@iafi.org SUMMARY:Explore Deep Time at Coyote Wall with Geologist Lloyd DeKay DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/explore-deep-time-at-coyote-wall-with-geologist-lloyd-dekay/ LOCATION:White Salmon/Hood River Bridge Park and Ride\, PGF5+M6\, White Salmon\, WA\, 98672\, United States CATEGORIES:Columbia Gorge,Field Trip,Hike ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Labyrinth-Overlook.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260509T130000 DTEND;TZID=America/Los_Angeles:20260509T150000 DTSTAMP:20260408T014423Z CREATED:20260408T014137Z LAST-MODIFIED:20260408T014423Z UID:41910-1778331600-1778338800@iafi.org SUMMARY:Cheney-Spokane Chapter Quarry Hike DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/cheney-spokane-chapter-quarry-hike-may2026/ LOCATION:Spokane Conservation District Office\, 4422 E 8th Ave\, Spokane Valley\, WA\, 99212\, United States CATEGORIES:Activity,Cheney-Spokane,Hike ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/SCD-QuarryOffice.jpg ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260516T074500 DTEND;TZID=America/Los_Angeles:20260516T110000 DTSTAMP:20260501T213638Z CREATED:20260501T213638Z LAST-MODIFIED:20260501T213638Z UID:42002-1778917500-1778929200@iafi.org SUMMARY:Explore Deep Time at Coyote Wall with Geologist Lloyd DeKay DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/explore-deep-time-at-coyote-wall-with-geologist-lloyd-dekay-2/ LOCATION:White Salmon/Hood River Bridge Park and Ride\, PGF5+M6\, White Salmon\, WA\, 98672\, United States CATEGORIES:Columbia Gorge,Field Trip,Hike ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Labyrinth-Overlook.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260606T100000 DTEND;TZID=America/Los_Angeles:20260606T160000 DTSTAMP:20260526T153442Z CREATED:20260418T011130Z LAST-MODIFIED:20260526T153442Z UID:41973-1780740000-1780761600@iafi.org SUMMARY:Lower Lake Wenatchee Area Field Trip—Saturday 6 June 2026 DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/lower-lake-wenatchee-area-field-trip-saturday-6-june-2026/ LOCATION:Lake Wenatchee State Park\, 21588 SR 207\, Leavenworth\, WA\, 98826\, United States CATEGORIES:Ellensburg,Field Trip ATTACH;FMTTYPE=image/webp:https://iafi.org/wp-content/uploads/Karl-Lillquist-Portrait.webp ORGANIZER;CN="Ellensburg Chapter":MAILTO:Ellensburg@IAFI.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260612T130000 DTEND;TZID=America/Los_Angeles:20260612T143000 DTSTAMP:20260508T223106Z CREATED:20260226T042340Z LAST-MODIFIED:20260508T223106Z UID:41772-1781269200-1781274600@iafi.org SUMMARY:Athol Library Lecture: Introduction to the Ice Age Floods and the National Geologic Trail DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/intro-to-the-ice-age-floods-trail/ LOCATION:Athol Library\, 30399 3rd St\, Athol\, ID\, 83801 CATEGORIES:Cheney-Spokane,Presentation ATTACH;FMTTYPE=image/webp:https://iafi.org/wp-content/uploads/IAF-NGT-Trail-Map-Sites.webp ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260616T163000 DTEND;TZID=America/Los_Angeles:20260616T180000 DTSTAMP:20260508T223038Z CREATED:20260226T043609Z LAST-MODIFIED:20260508T223038Z UID:41780-1781627400-1781632800@iafi.org SUMMARY:Harrison Library Lecture: Introduction to the Ice Age Floods and the National Geologic Trail DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/harrison-intro-to-the-ice-age-floods-and-the-national-geologic-trail/ LOCATION:Harrison Library\, 111 S Coeur d’Alene Avenue\, Harrison\, ID\, 83833 CATEGORIES:Cheney-Spokane,Presentation ATTACH;FMTTYPE=image/webp:https://iafi.org/wp-content/uploads/IAF-NGT-Trail-Map-Sites.webp ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260622T090000 DTEND;TZID=America/Los_Angeles:20260622T160000 DTSTAMP:20260205T203934Z CREATED:20260108T020128Z LAST-MODIFIED:20260205T203934Z UID:41272-1782118800-1782144000@iafi.org SUMMARY:Free STEAM Workshops for K–12 Educators - Richland\, WA DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/free-steam-workshops-for-k-12-educators-richland-wa/ LOCATION:The Reach Museum\, 1943 Columbia Park Trl \, WA\, Richland\, WA\, 99352\, United States CATEGORIES:Education,Workshop ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/IAFI-Logo-HighResSqx300.jpg ORGANIZER;CN="Lake Lewis Chapter":MAILTO:lakelewis@iafi.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260624T090000 DTEND;TZID=America/Los_Angeles:20260624T160000 DTSTAMP:20260205T203056Z CREATED:20260108T015634Z LAST-MODIFIED:20260205T203056Z UID:41269-1782291600-1782316800@iafi.org SUMMARY:Free STEAM Workshops for K–12 Educators - Spokane\, WA DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/free-steam-workshops-for-k-12-educators-spokane/ LOCATION:Shadle Park Library Maker Studio\, 2111 W. Wellesley Ave.\, Spokane\, WA\, United States CATEGORIES:Education,Workshop ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/IAFI-Logo-HighResSqx300.jpg ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260624T130000 DTEND;TZID=America/Los_Angeles:20260624T143000 DTSTAMP:20260508T223001Z CREATED:20260507T193931Z LAST-MODIFIED:20260508T223001Z UID:42017-1782306000-1782311400@iafi.org SUMMARY:Post Falls Library Lecture: What Happened when the Dam Burst? DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/postfalls-what-happened-when-the-dam-burst/ LOCATION:Post Falls Library\, 821 N Spokane St\, Post Falls\, ID\, 83854 CATEGORIES:Cheney-Spokane,Presentation ATTACH;FMTTYPE=image/png:https://iafi.org/wp-content/uploads/2022/08/Ominski-Ages-End-1280xCredit.png ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260627T130000 DTEND;TZID=America/Los_Angeles:20260627T143000 DTSTAMP:20260626T231009Z CREATED:20260226T044918Z LAST-MODIFIED:20260626T231009Z UID:41783-1782565200-1782570600@iafi.org SUMMARY:Spirit Lake Library Lecture: The Ice Age Missoula floods and the Spirit Lake giant current dune field DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/spirit-lake-floods-and-current-dune-field/ LOCATION:Spirit Lake Library\, 32575 N 5th Ave\, Spirit Lake\, ID\, 83869 CATEGORIES:Cheney-Spokane,Presentation ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/MegaRipples.jpg ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260707T130000 DTEND;TZID=America/Los_Angeles:20260707T133000 DTSTAMP:20260508T222904Z CREATED:20260226T041208Z LAST-MODIFIED:20260508T222904Z UID:41766-1783429200-1783431000@iafi.org SUMMARY:Hayden Library Lecture: Dating Erratic Boulders: How Long Ago Were the Floods? DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/dating-erratic-boulders-how-long-ago-were-the-floods-hayden/ LOCATION:Hayden Library\, 8385 N Government Wy\, Hayden Lake\, ID\, 83835 CATEGORIES:Cheney-Spokane,Presentation ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Glacial-Erratics-Hwy-200.jpg ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260714T150000 DTEND;TZID=America/Los_Angeles:20260714T163000 DTSTAMP:20260508T222829Z CREATED:20260226T041356Z LAST-MODIFIED:20260508T222829Z UID:41768-1784041200-1784046600@iafi.org SUMMARY:Rathdrum Library Lecture: Dating Erratic Boulders: How Long Ago Were the Floods? DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/dating-erratics-how-long-ago-were-the-floods-rathdrum/ LOCATION:Rathdrum Library\, 16320 ID-41\, Rathdrum\, ID\, 83858 CATEGORIES:Cheney-Spokane,Presentation ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Glacial-Erratics-Hwy-200.jpg ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260721T130000 DTEND;TZID=America/Los_Angeles:20260721T143000 DTSTAMP:20260626T230843Z CREATED:20260619T151919Z LAST-MODIFIED:20260626T230843Z UID:42091-1784638800-1784644200@iafi.org SUMMARY:Spirit Lake Library Lecture II: The Ice Age Missoula floods and the Spirit Lake giant current dune field DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/spirit-lake-library-lectureii-the-ice-age-missoula-floods-and-the-spirit-lake-giant-current-dune-field/ LOCATION:Spirit Lake Library\, 32575 N 5th Ave\, Spirit Lake\, ID\, 83869 CATEGORIES:Cheney-Spokane,Presentation ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/MegaRipples.jpg ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20260926T100000 DTEND;TZID=America/Los_Angeles:20260926T160000 DTSTAMP:20260707T232300Z CREATED:20260707T232300Z LAST-MODIFIED:20260707T232300Z UID:42166-1790416800-1790438400@iafi.org SUMMARY:Lake Cle Elum Field Trip\, Saturday\, 26 September 2026 DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/lake-cle-elum-field-trip-saturday-26-september-2026-2/ LOCATION:Cle Elum Lake\, 47° 15' 10.0800" N 121° 3' 47.3400" W\, Cle Elum\, WA\, United States CATEGORIES:Field Trip ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Cle-Elum-Lake.jpg ORGANIZER;CN="Ellensburg Chapter":MAILTO:Ellensburg@IAFI.org END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20270828T100000 DTEND;TZID=America/Los_Angeles:20270828T140000 DTSTAMP:20260619T153133Z CREATED:20260215T224751Z LAST-MODIFIED:20260619T153133Z UID:41691-1819447200-1819461600@iafi.org SUMMARY:POSTPONED Until August 2027: Bretz Was Right: A Pre‑Birthday Floods‑Fest DESCRIPTION:International Old Rock Day - January 7 \n \n \n \n Celebrate Old Rock Day on January 7 every year. It’s a day to remember the Earth’s incredible history and to pay tribute to the amazing geologists who help us understand it. We’ve been dependent on rocks since we first walked the Earth\, and today it’s no different\, with rocks forming the foundation of our daily lives. \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n History of “Old Rock Day”The study of rocks was first introduced by the Ancient Greek Theophrastus in his work\, “Peri Lithon” (“On Stones”)\, and became the cornerstone of geology for other interested scientists. The study was advanced by Pliny the Elder\, who recorded numerous minerals and metals in great detail\, with a particular focus on their practical use. Although working without the tools we use today\, Pliny was able to correctly identify the origin of amber as fossilized tree resin. It wasn’t until 1603 when the word ‘geology’ was used for the first time by Italian naturalist Ulisse Aldrovandi. It took a further 150 years for the first geological maps to be drawn by British geologist William Smith\, whose work began the process of ordering rock layers by examining the fossils contained in them. Then\, in 1785\, James Hutton wrote and presented a paper to the Royal Society of Edinburgh called ‘Theory of the Earth’\, which outlined his belief that the world was far older than previously thought. His breakthroughs make him widely considered the first modern geologist. In 1809 William Maclure produced the first geological map of the USA\, a task he completed thanks to two painstaking years spent personally traversing the country. With the invention of radiometric dating in the early 20th century\, scientists could finally provide an accurate figure for the age of the earth by tracing the radioactive impurities found in rocks. It helped scientists to see that the Earth is one very old rock indeed! Rocks have been essential for human development\, which is why we celebrate Old Rock Day and the wonder of the geological world. \n \n \n \n Why We Love "Old Rock Day" \n \n \n \n \n \n Geology is coolStudying the natural world helps us protect\, preserve\, and predict it so that we can live in harmony with nature \n \n \n \n Rocks are usefulFrom the sturdy bricks of our homes to the sidewalk beneath our feet\, rocks are essential for human existence \n \n \n \n Rocks are preciousSome of the most coveted things in the world today — gold\, diamonds\, and other gemstones — are old rocks (minerals) \n \n \n \n \n \n Reprinted from National Today – Old Rock Day URL:https://iafi.org/event/bretzfest2027/ CATEGORIES:Activity,Cheney-Spokane,Field Trip ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/2022/06/J-Harlan-Bretz-1-e1771196571336.jpg END:VEVENT END:VCALENDAR