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X-WR-CALDESC:Events for Ice Age Floods Institute
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260310T180000
DTEND;TZID=America/Los_Angeles:20260310T193000
DTSTAMP:20260403T143906
CREATED:20260224T193857Z
LAST-MODIFIED:20260224T193857Z
UID:41757-1773165600-1773171000@iafi.org
SUMMARY:The Ice Age Floods History of the Cheney Area
DESCRIPTION:The landscape upon which the town of Cheney has been built bears silent witness to one of the greatest series of catastrophic floods that has ever been documented on our planet. In this talk\, we delve into how the leading scientists\, both past and present\, have interpreted this landscape as a consequence of one immense glacial lake pouring into another glacial lake\, which then overflowed and breached the southern shoreline to create the vast channeled scablands.  \nPresented by Dr. Linda McCollum\, professor emeritus of geosciences at EWU and president of the Ice Age Floods Institute (IAFI)\, Cheney-Spokane Chapter \nRegistration is required.
URL:https://iafi.org/event/ice-age-floods-history-cheney-2026/
LOCATION:Cheney Community Library\, 610 1st St\, Cheney\, WA\, 99004
CATEGORIES:Cheney-Spokane,Presentation
ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/Linda-McCollum-e1705046318535.jpg
ORGANIZER;CN="Cheney-Spokane Chapter":MAILTO:iaficheneyspokane@gmail.com
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260314T100000
DTEND;TZID=America/Los_Angeles:20260314T150000
DTSTAMP:20260403T143906
CREATED:20260127T195743Z
LAST-MODIFIED:20260205T204110Z
UID:41379-1773482400-1773500400@iafi.org
SUMMARY:Combined Chapter Hike – Escure Ranch / Towell Falls
DESCRIPTION:The Palouse Falls and Cheney-Spokane Chapters of the IAFI invite you to a hike at Escure Ranch on the BLM Rock Creek Recreation Site on Saturday\, March 14. The hike will start at 10:00 a.m. It will be led by Don Chadbourne\, geologist and board member of the Cheney-Spokane Chapter\, and Lloyd Stoess\, president of the Palouse Falls Chapter. You will meet the leaders at the trailhead. \nDescription of the Escure Ranch Hike\nThe hike will begin and end at the Escure Ranch parking area\, of the Bureau of Land Management\, Rock Creek Recreation site. The hike will follow an old ranch road to Towell Falls and return on the same route. The out and back hike will be about 6.5 miles.  The trail is mostly double track over dirt and rock\, with an elevation gain and loss of about 160 feet.  The hike is a pleasant trek through a remote scabland canyon.  Features will include rock benches and basins\, flood bars\, Mima mounds\, mesas and waterfalls.  This hike is included in the book\, On the Trail of the Ice Age Floods – Northern Reaches\, by Bjornstad & Kiver.   \nDirections to the trailhead will be provided to hikers after registration. \nClick on the Register button to sign up for the hike. The hike will be limited to 30 hikers. \nItems to bring with you: appropriate shoes\, day pack\, water\, snacks\, appropriate clothing for changes in the weather\, sun protection\, emergency items\, camera and binoculars. Walking poles will be helpful. \nThe hike is free; however\, donations for support of Chapter activities will be accepted. \nFor additional questions\, contact Don at 509-891-5875\, or Lloyd at 509-954-3927. \n \n \nMap available for download: 11 x 17 LIDAR map of Escure Ranch Area showing our hiking route to Towell Falls (downloadable PDF)
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:20260403T143906
CREATED:20260210T053739Z
LAST-MODIFIED:20260210T053739Z
UID:41602-1773988200-1774213200@iafi.org
SUMMARY:Sandhill Crane Festival
DESCRIPTION:At the Sandhill Crane Festival\, March 20-22\, 2026 in the beautiful Columbia Basin\, Othello\, WA\, you’ll have the chance to explore the Ice Age Floods story through presentations and field trips\, and see thousands of Sandhill Cranes\, ducks\, and geese as they gather against the stunning backdrop of the Saddle Mountains and sprawling cornfields. There is a fantastic lineup of geology and wildlife viewing opportunities\, along with engaging talks\, fun tours\, hikes\, and workshops for everyone to enjoy. \n \nRegistration is now open with a registration deadline of March 15 at noon (No refunds after this date).\nAll Events are offered on a first-come\, first-served basis. Reservations are filled in the order received.\nPlease note\, Lectures\, tours and hike participants must purchase a General Admission Ticket for $10.00.
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:20260403T143906
CREATED:20260216T045921Z
LAST-MODIFIED:20260216T045921Z
UID:41696-1774026000-1774029600@iafi.org
SUMMARY:Mega-Floods of the World - The Legacy of Dr. Bretz' Work
DESCRIPTION:Researchers have established\, based on the pioneering work of Dr. J Harlen Bretz and JT Pardee\, that over 140 Ancient Mega-Flood\, including Noah’s Flood are discussed in oral traditions worldwide. Professional geologist Bill Burgel will briefly discuss how the research related to the Missoula Floods and Bonneville Flood has opened up the possibility of mega-floods being the most likely explanation for the formation of the Mediterranean Sea\, the Persian Gulf\, The Bosphorus Straits\, the English Channel\, Chimu in Peru and the floodwaters on Mars. Mega-flood events are also being cited for the draining of Glacial Lake Agassiz\, Glacial Lake Iroquois and the Grand Canyon of the Yellowstone. 
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:20260403T143906
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:This presentation will begin by defining what an Ice Age is and then looking at our dynamic planet and those major events that can lead to dramatic temperature changes. Also included will be a look at hazards here in the Pacific Northwest and why they occur.
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:20260403T143906
CREATED:20260212T052927Z
LAST-MODIFIED:20260212T052927Z
UID:41662-1774167300-1774195200@iafi.org
SUMMARY:Moses Coulee Field Trip
DESCRIPTION:This field trip will head north from Othello along the eastern edge of the Quincy Basin with stops on the Ephrata Fan and Soap Lake at the mouth of Grand Coulee. Moses Coulee parallels Grand Coulee to the west and has puzzled scientists to this day. Several plausible explanations to its origins have been proposed. This off-the-beat coulee is always a surprise to first time visitors.  \nOn the way back to Othello\, there will be stops at Potholes Coulee and Drumheller Channels which were two of the four outlets for the Missoula Floods exiting the Quincy Basin.  \nGo to www.othellosandhillcranefestival.com to sign up for this trip.
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:20260403T143906
CREATED:20260224T194930Z
LAST-MODIFIED:20260224T200639Z
UID:41759-1774375200-1774380600@iafi.org
SUMMARY:Dating Erratic Boulders: How Long Ago Were the Floods?
DESCRIPTION:How do geologists know when the ice age floods actually occurred in the Spokane area? One method is to date the large flood-rafted erratic boulders. We explore the ages of the floods and the methods used to determine their dates and present newly gathered dates from the Spokane region revealing when the floods happened.  \nPresented by Glenn Cruickshank\, vice president of the Ice Age Floods Institute (IAFI)\, Cheney-Spokane Chapter \nRegistration is required.
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:20260403T143906
CREATED:20260214T010409Z
LAST-MODIFIED:20260221T065709Z
UID:41676-1774688400-1774713600@iafi.org
SUMMARY:Geology of the Tri-Cities Field Trip
DESCRIPTION:The Lake Lewis Chapter of the Ice Age Floods Institute is sponsoring an informal (carpool) field trip focus on the geology in and around Richland\, Washington.  \nWe will leave from the southwest portion of the Richland Community Center (500 Amon Park Dr.\, Richland\, WA 99352) parking lot (nearest to Wake-Up Coffee House).  Please try to arrive by 8:45 AM so that we can get organized into as few vehicles as possible and be ready to leave by 9:00 am.  We will try to get back around 3:30 or 4:00 pm. \nThis field trip will examine the geologic materials\, processes\, and history of the Tri-City area\, including exposures of the massive Columbia River basalts\, ancestral Columbia River and Yakima River deposits (including the Ringold Formation)\, old sequences of Ice Age flood deposits (some greater than 780\,000 years old)\, as well as young Ice Age flood deposits and loess exposed at the  Coyote Canyon Mammoth Site.  There will be 5 or 6 main stops\, with some cross-country hiking (up to 1.3 miles) on unimproved game trails.  Some areas are pretty steep\, with uneven terrain and loose gravel\, presenting slip\, trip and fall hazards.  Other physical hazards can also be present in places\, including rusty nails\, glass\, sharp metal\, wood\, and masonry debris.  There is also the potential for biological hazards such as ticks\, yellowjackets\, black widows\, scorpions\, rattlesnakes\, and the ever-present cheat grass.  \nPlease bring a lunch\, snacks\, water\, etc. and be sure to dress appropriately for the weather conditions and for walking in uneven terrain.  Wear sturdy shoes (no open toes\, sandals\, or flip-flops!)\, bring an extra layer of clothing\, and be prepared for wind\, rain\, or sun.  If it’s sunny and hot\, you’ll need a hat and sunscreen.  Oh\, and be sure to bring a camera! \nThe field trip is free.  However\, carpooling and ride cost sharing are encouraged.  You can also join and/or donate to IAFI through https://iafi.org/join-iafi/ or donate to the IAFI K-12 Education Grant Program through https://www.zeffy.com/en-US/donation-form/donate-to-iafi-k-12-education-grant-program. \nPlease contact George Last (gvlast@charter.net) if you would like to attend or if you have any questions.
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:20260403T143906
CREATED:20260212T054710Z
LAST-MODIFIED:20260212T060315Z
UID:41667-1775307600-1775314800@iafi.org
SUMMARY:Cheney-Spokane Chapter Hike – Palisades Park 2026
DESCRIPTION:The 3-mile hike will be led by IAFICS board member geologist Michael Hamilton. It will take place along Rimrock Drive\, which has spectacular views of Spokane and the Spokane Valley. The Glacial Outburst Flood Story will include a lot of “arm-waving\,” pointing out flood features both along the trail and with views to the east. The geology discussion will include details of another kind of flood that hit the Spokane area 14 million years ago. The hike will then cut to the west along one of the park’s trails to find mysterious Mima mounds\, and then loop back to the parking area. \n  \n \n \n 
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:20260403T143906
CREATED:20260224T003540Z
LAST-MODIFIED:20260401T165125Z
UID:41749-1775901600-1775919600@iafi.org
SUMMARY:Lower Crab Creek Field Trip—Saturday 11 April—10am to ~3p
DESCRIPTION:Field Trip Leader: Karl Lillquist\, Emeritus Professor\, Geography Department\, CWU \n What’s so cool about lower Crab Creek?  Crab Creek is a perennial stream with headwaters not far from Spokane!  It flows over 160 miles through semiarid eastern and central Washington to join the Columbia River just south of Beverly.  Lower Crab Creek lies in a broad coulee adjacent to the towering faulted and folded Saddle Mountains.  Ice Age floods from two directions scoured the coulee walls.  More recent rockfall and landslide deposits veneer the coulee walls\, and sand dunes and salt flats blanket the coulee floor.  Native Americans have long frequented the river and shrub steppe environments of the area.  In the past 150 years\, the landscape has been altered by the coming of the railroad and by large scale irrigation.  Currently\, the area is a mecca for outdoor-minded folks included hunters\, fishers\, nature lovers\, cyclists\, and off road vehicle enthusiasts. \nOver the day\,  we will explore: \n1) the tectonic  origins of Crab Creek “Coulee” and the Saddle Mountains; \n2) impacts of Ice Age flooding on the area; \n3) formation of prominent rockfall and landslides from the Saddle Mountains; and \n4) how geology\, weather and climate\, and human activity have shaped sand dunes and salt flats in the area.\nThe trip will conclude around 3pm giving participants plenty of time to get back to Ellensburg for Nick Zentner’s lecture.   \nWhat’s the plan for the day?\n10:00am           Stop 1—Beverly—geology and geography overview; Ice Age floods\n11:00                   Depart\n11:15                  Stop 2—Beverly Sand Dunes—weather\, dunes\, ORV’s\, salt flats & Crab Creek\n12:00 pm          Depart\n12:15                  Stop 3—Smyrna Ice Cave—faulting\, talus\, cold air drainage & human uses of talus\n1:00                     Depart\n1:15                     Stop 4—West of Smyrna—landslides\n2:00                     Depart\n2:15                     Stop 5—Red Rock Coulee—Ice Age floods\n3:00                     Depart \nWhere to meet and park?   We will meet on the east end of the Chicago\, Milwaukee\, St. Paul & Pacific railroad bridge in Beverly at 10:00am.  The bridge and the old railroad right of way are now part of the Palouse to Cascades Trail.  This trail forms the northern boundary of the town of Beverly and is our first stop.  Beverly is located about 10 miles south of Vantage along the Columbia River.  To get there from WA 243\, take a left and head east on Lower Crab Creek Road for just under 0.2 mi.  Turn left onto Seattle Street and drive north for ~0.2 mi to a trailhead just south of the Palouse to Cascade Trail.  Park here or along Seattle Street\, 1st Avenue SW\, or Main Street.  Make sure to pull off the streets as far as possible and don’t block resident’s driveways. \nWhat are the trip logistics and costs?  All Ellensburg IAFI field trips are free of charge and involve participants driving their own vehicles to the various stops.  Most trips involve several short walks or hikes.  We may cross barbed wire fences\, and walk over uneven terrain and through dryland vegetation.  There are limited restrooms scattered along our route.  There’s no need to reserve a place on the field trip—just show up!  We provide a free digital copy of the field guide for you to download or print out (see “Field Guides” near the bottom of my CWU website => https://www.cwu.edu/academics/geography/_documents/karl-lillquist.php).  I will post the Lower Crab Creek field guide on my website on about Monday 6 April.  Due to budget constraints\, hardcopies of the field guide will now only be available by prior request and subsequent donation (suggested $15).  If you want a full color\, hardcopy of the ~40 page field guide\, email me at lillquis@cwu.edu to let me know how many copies you would like.  I will place my order for hardcopies by 8:00am Monday 6 April so if you want a hardcopy\, please get your request in before that day.  Pick up your copy and make your donation to IAFI at Stop 1 on the field trip. \nHope you can join us! 
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:20260612T130000
DTEND;TZID=America/Los_Angeles:20260612T143000
DTSTAMP:20260403T143906
CREATED:20260226T042340Z
LAST-MODIFIED:20260226T042340Z
UID:41772-1781269200-1781274600@iafi.org
SUMMARY:Athol: Introduction to the Ice Age Floods and the National Geologic Trail
DESCRIPTION:Details to come. \nPresented by Don Chadbourne\, geologist and board member of the Ice Age Floods Institute (IAFI)\, Cheney-Spokane Chapter \nRegistration is required. It will be linked here as soon as it has been posted to the library website. https://communitylibrary.net/library/athol/
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:20260403T143906
CREATED:20260226T043609Z
LAST-MODIFIED:20260226T043609Z
UID:41780-1781627400-1781632800@iafi.org
SUMMARY:Harrison: Introduction to the Ice Age Floods and the National Geologic Trail
DESCRIPTION:Details to come. \nPresented by Don Chadbourne\, geologist and board member of the Ice Age Floods Institute (IAFI)\, Cheney-Spokane Chapter \nRegistration is required. It will be linked here as soon as it has been posted to the library website. https://communitylibrary.net/library/harrison/
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:20260707T130000
DTEND;TZID=America/Los_Angeles:20260707T133000
DTSTAMP:20260403T143906
CREATED:20260226T041208Z
LAST-MODIFIED:20260226T042733Z
UID:41766-1783429200-1783431000@iafi.org
SUMMARY:Hayden: Dating Erratic Boulders: How Long Ago Were the Floods?
DESCRIPTION:How do geologists know when the ice age floods actually occurred in the Spokane area? One method is to date the large flood-rafted erratic boulders. We explore the ages of the floods and the methods used to determine their dates and present newly gathered dates from the Spokane region revealing when the floods happened.  \nPresented by Glenn Cruickshank\, vice president of the Ice Age Floods Institute (IAFI)\, Cheney-Spokane Chapter\, and Dr. Jim O’Connor\, USGS \nRegistration is required. It will be linked here as soon as it has been posted to the library website.
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:20260403T143906
CREATED:20260226T041356Z
LAST-MODIFIED:20260226T042533Z
UID:41768-1784041200-1784046600@iafi.org
SUMMARY:Rathdrum: Dating Erratic Boulders: How Long Ago Were the Floods?
DESCRIPTION:How do geologists know when the ice age floods actually occurred in the Spokane area? One method is to date the large flood-rafted erratic boulders. We explore the ages of the floods and the methods used to determine their dates and present newly gathered dates from the Spokane region revealing when the floods happened.  \nPresented by Glenn Cruickshank\, vice president of the Ice Age Floods Institute (IAFI)\, Cheney-Spokane Chapter \nRegistration is required. It will be linked here as soon as it has been posted to the library website.
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:20260403T143906
CREATED:20260226T044918Z
LAST-MODIFIED:20260226T044918Z
UID:41783-1784638800-1784644200@iafi.org
SUMMARY:Spirit Lake: The Ice Age Missoula floods and the Spirit Lake giant current dune field
DESCRIPTION: Giant Current Dunes or MegaRipple Marks – One of Bretz’ most important pieces of evidence for catastrophic flooding was the “giant current dunes.” These large-scale bedforms appeared as patterns of parallel ridges and swales on many aerial photographs in the flood channels in the scabland of Washington\, but had escaped recognition from the ground because of their size.  \nGiant Current Dunes are visible west of Clark Fork near Castle Rock; however\, the most prominent and visible Giant Current Dunes are located several miles east of Spirit Lake along Hwy 54 where the highway cuts through the dunes showing their undulating profile. The location of many of the telephone poles on the crest of these dunes accentuates these landforms. The dunes form transverse to the current direction\, and form cusps that are convex upstream\, with arms that point downstream. Furthermore\, the size of the cusps appears to decrease in the direction of lower velocity. Internally\, the dunes consist of gravel and pebble foresets. \nGiant current dunes exhibit an asymmetrical profile with the downstream (lee) slope steeper than the upstream slope. Crests range from 20 to 200m apart and heights range from 1 to 15m (Baker and Nummedal\, 1978) and are among the largest measured throughout the Floods area. The Spirit Lake current dunes can also be easily recognized from the air by their characteristic pattern\, accentuated by vegetation. This dune field is immediately in the path of the breakout from Lake Pend Oreille\, and experienced some of the highest energy flows. \nPresented by Dr. Linda McCollum\, president of the Ice Age Floods Institute (IAFI)\, Cheney-Spokane Chapter \nRegistration is required. It will be linked here as soon as it has been posted to the library website (https://communitylibrary.net/library/spirit-lake/).
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:20260829T100000
DTEND;TZID=America/Los_Angeles:20260829T140000
DTSTAMP:20260403T143906
CREATED:20260215T224751Z
LAST-MODIFIED:20260215T230400Z
UID:41691-1787997600-1788012000@iafi.org
SUMMARY:Bretz Was Right: A Pre‑Birthday Floods‑Fest
DESCRIPTION:Save the date! \nOur chapter is planning a special late‑summer gathering on Saturday\, August 29\, in honor of J Harlen Bretz\, whose birthday falls just a few days later (September 2). Bretz’s groundbreaking work on the Ice Age floods reshaped the scientific understanding of the Northwest—and we think that deserves a celebration. \nWe’re still shaping the details\, but expect a relaxed\, community‑friendly event that highlights Bretz’s legacy and the remarkable landscapes he helped the world understand. More information will be posted as plans develop. \n \n \n  \nHe mapped the scablands bold and bright\,\nSaid “Floods did this!” with all his might.\nFor thirty years they told him “No”…\n’Til evidence began to flow. \nSo join us as we celebrate\nThe man who made the floods make sense —\nA pre‑birthday bash for J Harlen Bretz\,\nWho proved the skeptics wrong (immense!). \n \n 
URL:https://iafi.org/event/bretzfest2026/
LOCATION:WA
CATEGORIES:Activity,Cheney-Spokane,Field Trip
ATTACH;FMTTYPE=image/jpeg:https://iafi.org/wp-content/uploads/2022/06/J-Harlan-Bretz-1-e1771196571336.jpg
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260901T190000
DTEND;TZID=America/Los_Angeles:20260901T200000
DTSTAMP:20260403T143906
CREATED:20260324T052506Z
LAST-MODIFIED:20260325T022516Z
UID:41858-1788289200-1788292800@iafi.org
SUMMARY:Mysteries of the Channeled Scablands and the two Detectives who Solved it.
DESCRIPTION:Giant Pothole near Washtucna\, WA\nOver 100 years ago\, scientists discovered the unique landscape of the Channeled Scablands of Washington. By studying clues in Montana\, Idaho\, Washington\, and Oregon\, two of them pieced together the evidence that led to their conclusion which was scoffed at by many of their colleagues. After more than 20 years of field study and overwhelming evidence\, most of the scientific community finally agreed with them.  \nSee how today\, new detectives are in the field with new technologies to unravel more of the mysteries of the Channeled Scablands.  \nLloyd Stoess\, President of the Palouse Fall Chapter of the IAFI\, will show pictures and explain the evidence of the enormous Missoula Floods that carved our landscape.  \n 
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
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