The Bowl & Pitcher at Riverside State Park
The Bowl and Pitcher is a rock formation along the Spokane River and one of the most scenic sites in the area, with basalt cliffs rising 500 feet above the river and large blocks of basalt in the river causing large rapids. The “Bowl” is a circular depression in the river and the “Pitcher” is a large detached block of highly fractured basalt. The geology of Spokane’s Bowl and Picher features dramatic basalt cliffs carved out of the flows from the Columbia River Basalt Group (CRBG), which reached this area 16 million years ago. There are river and flood deposits of sand and gravel, with granitic boulders forming terraces on the east side of the river, and huge blocks of basalt, causing the Dragon Tooth rapids, downriver from the Bowl and Pitcher. How did those rocks get there? The Spokane and Columbia rivers occupy a long, mostly bedrock canyon near the northeastern boundary of the Columbia Plateau. Glacial Lake Columbia, which formed behind the Okanogan ice lobe, occupied all of the Spokane River and a portion of the Columbia drainage basin during the last Ice Age. Then the glacial Lake Missoula outburst floods first surged over the Columbia Basin beginning around 17,000 years ago, ripping away the CRBG and other bedrock from Bayview, Idaho, to the Pacific Ocean. These floods also deposited a thick sequence of flood gravel in the valley. As Lake Columbia water level dropped, the Spokane River began to remove the sand and gravel fill. Subsequent floods continued to remove the flood deposits, leaving the basalt benches on the west side of the river and the terraces on the east side. Riverside State Park is located northwest of Spokane and consists of over 9000 acres along the Spokane and Little Spokane Rivers. The park is the second largest state park and has many recreational activities including, camping, hiking, mountain biking, horseback riding and boating (Discover Pass required). There are two view points for the Bowl and Pitcher. The first is from a small parking lot off the entrance road from Aubry White Parkway that provides an elevated view of the site. The main parking area is down along the river with a picnic area and a network of trails. From the parking lot you can follow the wheelchair accessible path across the suspension bridge over the Spokane River. From the bridge you can enjoy a view of the features that give the site its name. The original bridge was built in 1942 by the Civilian Conservation Corps. The existing bridge, based on the same plans, opened in 1998. On the west side of the river, you can access a network of trails along the river or climb up along the bluffs above the river.
Inspire New Generations
with the Ice Age Floods Story Help bring one of North America’s most dramatic geological events into Pacific Northwest classrooms Join Us in Making an Impact Help students discover the powerful forces that shaped our region’s landscape The Ice Age Floods Story The Ice Age Floods carved spectacular landscapes across Washington, Oregon, Idaho, and Montana—creating the dramatic geology we see around us today. The landscape of the Pacific Northwest tells a powerful story of earth-shaking forces—but does our next generation know how to read it? The IAFI K-12 Education Grant Program The Ice Age Floods Institute is launching a new K-12 Education Grant Program empowering teachers to take students beyond the textbook to explore the science in the classroom and field. Grants of up to $500 will give educators the resources they need to spark curiosity about the landscape before their eyes and beneath their feet. Now, through the IAFI K-12 Education Grant Program, you can help students experience this incredible story firsthand. Building for the Future Our pilot program launches with $5,000 in seed funding from IAFI and our 11 local chapters. The program will initially focus on 4th grade classrooms in support of with our new IAFI 4th Grade Curriculum Project. With your support, we can expand the program to serve students throughout K-12 grades across the region—creating a lasting educational legacy. $500 Maximum Grant per Educator 100% of Funds Go to Help Students Why This Program Stands Out Our K-12 Education Grant Program and your donations will help empower educators to enhance Ice Age Floods curriculum with: Field trips to flood-carved landscapes where students can read the story written in the rocks Classroom materials and educational resources that make complex geology accessible Hands-on demonstrations and interactive activities that spark curiosity Professional development opportunities for educators Geographic Reach Priority is given to schools in the core Ice Age Floods impact zones across Washington, Oregon, Idaho, and Montana. We also welcome applications from the broader region for educational initiatives related to the Ice Age Floods. How Your Gift Powers Discovery Every dollar you donate directly supports hands-on learning experiences. Our team donates grant administration, and through our partnerships with Zeffy and PayPal Giving Fund there are zero processing fees, so your entire donation will go to work to fund classroom materials, interactive activities and field trips that bring the Ice Age Floods and science to life. Donate to the IAFI K-12 Education Grant Program Zeffy Fundraiser payPal Giving Fund Your Support Makes a Difference Donated administration by our all-volunteer team and our partnerships with Zeffy and PayPal Giving Fund eliminate processing fees and ensure maximum impact, so your full donation directly fuels student discovery. Together, we’re not just teaching the Ice Age Floods story—we’re inspiring young people to share this remarkable story with their families and communities. Questions? Email us at IAFIgrants@gmail.com Help expand the program, donate fee-free with several payment options through our Zeffy Fundraiser or PayPal Giving Fund links Our fiscal sponsor, IAFI Columbia Gorge Chapter, is a federally registered 501(c)(3) non-profit organization. Your donation may be tax deductible
Why Are Basalt Columns Mostly Hexagonal “Bestagons”
The Giant’s Causeway is a rock formation that is so otherworldly that it seems like it was made by supernatural beings. But these incredible hexagonal columns of rock aren’t the result of giant masons. They formed through a quirk of volcanic activity that shows that hexagons really are the bestagons! Cooling lava naturally creates hexagonal cracks to evenly relieve stress When lava cools and turns into rock, it contracts and builds up tension, particularly when held in place by the surrounding landscape. Just as drying mud cracks, initial cracks in the rock are random, but quickly organize into a hexagonal pattern, which scientists consider the most space-efficient shape. Note: the presentation talks about lava cooling from the top down, but it also cools upward from the bottom where it flowed onto a cooler land surface. In our area we typically see columns underlying a more chaotically fractured “entablature”. It is generally thought that because the entablature section is exposed to the air and precipitation, that results in rapid cooling that produces chaotic fracturing. The columnar section which is cooling upward from the base, would experience a much slower and more even rate of cooling, allowing it to better organize into an optimal, space-efficient “bestagonal” shape. Found via SciShow, hosted by: Niba @NotesbyNiba
Missoula Chapter Field Trip TV News Coverage
Missoula chapter field trip – tv news coverage Recently the Montana Natural History Center identified a group of people new to the floods that wanted to do “something” outdoors, but not too early, or too long, or too strenuous, or too late. So IAFI’s Glacial Lake Missoula Chapter worked with the Center to put together a 4 hour, middle of the day field trip. We saved money by using the History Center short bus and our History Center liaison as our driver. Bring your own lunch and water, dress for short hikes and variable weather. The short bus limited us to twelve plus a speaker. We went for $60 per person, $40 for IAFI members, students and Natural History Center members. The trip sold out instantly as soon as we started to publicize. Chapter president Jim Shelden said, “I was surprised that much of the interest was from members that had done 1 or more trips before. The rest was from other newbies. Clearly we want to do more of this.” On trip day a reporter from the local KPAX-TV news popped in and wanted to come along, but he had to follow the bus because we were out of room. A member of The History Center board of directors also wanted to come along, so since we had no seat for him and he wanted to talk more with the reporter, he rode with the reporter. The reporter also needed to be back in town by one PM to edit and get the video ready, so we ran the trip in reverse order to get the summation speech in for our new guests to make the deadline. Then we proceeded to the other sites to show the other participants all the evidence. The day was beautiful with lunch by the river and the reviews were very good. The station got good feedback, the board member was pleased talking to the participants, and we will make the station aware of all our events in the future.
Jeff Becklund
Wenatchee Valley Erratics Chapter President Retired 42 yrs Licensed Coast Guard Captain. Retired Senior Captain Trilogy Excursions . Bellevue High School. Western Washington State College, 74-78, Recreation Park Management Program. Moved to NW in 2020 now resides in Wenatchee. Americorp Volunteer 2022-2025, serving at Wenatchee Valley Museum and Cultural Center as Program and Tours Coordinator. Coordinated tours for Ken Lacy and Brent Cunderla. Supported Wenatchee Valley Erratics Chapter tours since 2023
There IS such a thing as ‘settled science’
How bad-faith arguments sow doubt by weaponizing scientific humility Good advice to consider when either claiming or questioning scientific (and geologic) theories and hypotheses “Science is never settled” has become a go-to slogan for populists seeking to legitimize fringe scientific positions. In 2020, Representative Nancy Mace was asked whether she agreed that climate change is the result of humanmade greenhouse emissions. She responded: “My opponent has said that the science is settled on this. Well, the science is never settled. Scientists will tell you that.” In February, Senator Roger Marshall argued more money should be spent on investigating widely debunked links between autism and vaccines, saying “I’m a physician. Science is never settled. That’s what makes us scientists.” When U.K. Reform party leader Nigel Farage was pressed on whether he would “side with medical experts who say ‘a link between Tylenol use in pregnancy and autism’ is dangerous nonsense,” he responded, “When it comes to science, I don’t side with anybody… because science is never settled.” The issue is, of course, that in many areas, from the theory of evolution to the theory of gravity, science is very much settled. To pretend otherwise is to misrepresent the position of the scientific community. That doesn’t mean that scientific positions are eternally fixed and can’t be updated in light of new evidence. It means that our current best explanations have been tested enough for us to be confident that they are good descriptions of the way things work. Myth of overturned consensus A favorite trope of climate denialists is that scientists in the 1970s predicted “global cooling” — an imminent ice age. It’s a smart argument, because if you can suggest that the exact opposite of global warming was once the prevailing view, surely you throw the current consensus on climate science into doubt? Despite media attention and much discussion of the idea, global cooling was never a consensus scientific position. Reviews of the literature at the time show that even 50 years ago, global warming dominated scientific thinking about the Earth’s short-term climate future. That climate change is the result of greenhouse gas emissions is now very much the consensus scientific position. There are, however, examples in science where consensus positions have been modified or updated. Gravity is a classic case. Galileo established that acceleration due to gravity is the same for all objects near Earth’s surface. But it wasn’t until Newton that we had a universal theory of gravitation. Newton’s theory unified the behavior of objects falling on earth with the motions of planets. For years, every measurement seemed to confirm it, and the theory became known as a “law” that nature was thought to obey without exception. But as experiments expanded and instruments improved, the edges of Newton’s “law” began to fray. When dealing with strong gravitational fields like those near a black hole, or when calculating to high precision or over short astronomical distances, Newton’s law wasn’t sufficient. In the 20th century, Einstein’s general relativity filled many gaps — resolving a range of seeming astronomical anomalies and describing how light bends near a black hole. Yet even the relativistic interpretation of gravity is not perfect. We know, for example, that it must break down inside a black hole. First Galileo’s and then Newton’s theories were superseded, and we know Einstein’s isn’t correct in every situation. Does that mean these earlier theories are useless and not examples of settled science? Definitely not. In contexts where these theories have been rigorously tested and shown to give the correct answers (to a given degree of precision), they remain valid. They aren’t wrong — just special cases of the more general theories, valid within a given domain of legitimacy in which they were originally postulated and tested. In the same way, whatever supersedes Einstein’s theory will have to include it as a special case. The example of gravity shows that scientific knowledge can evolve yet still be considered settled within its domain of legitimacy. We can point to other consensuses, like evolution or germ theory, as settled science that has been expanded and generalized over time. Scientific ‘facts’ There are also questions that most would call definitively settled. That Earth is round, not flat, is perhaps the most obvious. But whether we choose to call this a “fact” or not depends on how we define the word. If we demand 100% certainty, science can’t provide it. If you want certainty, you need to look to mathematics, where knowledge is built through deduction from axioms (a fundamental set of premises), independent of the world. Science, in contrast, built on evidence and induction, can only ever offer increasing confidence. A key premise of the scientific method is openness to new evidence. If you consider yourself 100% certain, then no new evidence, however convincing, can change your mind. That is not good science. However, if you accept that science provides evidence for hypotheses, it can offer what we might call indisputable evidence — so robust that disputing it isn’t a tenable position. Overturning the not-flat worldview would require such a massive reconsideration of what we understand about reality as to make it practically impossible. So, “settled science” does not mean we know something with absolute certainty, but that the weight of evidence is heavily in favor of this interpretation. Perhaps more importantly, if someone wants to change the currently held conception, the burden of proof is on them. All scientific knowledge comes with uncertainty. That is the hallmark of good science. But uncertainty doesn’t mean we cannot confidently assert that entropy always increases (the second law of thermodynamics) or that Earth orbits the sun. Science embraces uncertainty and is open to revision when new information appears, but that does not mean we shouldn’t take a position when the evidence stacks up on one side of the balance. Issues that have been rigorously tested can still be considered settled. Not being 100% certain isn’t the same as being 50-50. Admitting doubt isn’t the same as both-siding a one-sided issue. The fact that scientists acknowledge uncertainty isn’t a reason for championing false balance. But these are the fallacious positions populists are taking when
Kititas Valley Historical Museum – Ellensburg
IN THE CITY OF ELLENSBURG… when you want to spend some time indoors, a great place to visit is the KITTITAS VALLEY HISTORICAL MUSEUM. It has about 30,000 items from which more than 50 exhibits and displays are chosen. The mission of the museum is to, “Collect, Preserve and Share the History, Heritage, and Culture of Kittitas County.” In experiencing it you feel a strong connection to the Pacific Northwest. Collection highlights include: Indigenous cultural items (especially from the K’tɨ́taas and Pshwánapam bands). Note the roots here for the local names of Kittitas and Wanapum. Geological specimens, including Ellensburg Blue Agate Some fossilized animals Household goods, textiles, and furnishings Military memorabilia and service records Historic photographs and albums Agricultural tools and equipment Business records and local commerce material Even the building itself is interesting. Built of brick, it was constructed after the Great Ellensburg Fire of July 4, 1889. (There is an exhibit about that fire and its devastation to the town). Some examples of what you will see: So, if you are so inclined, spend some time and enjoy. The museum is open Monday through Saturday from 10am to 4pm. The address is 114 E. 3rd Ave. Ellensburg Admission is free and donations are accepted. Article by Mike Doran: President of the Ellensburg Chapter of the Ice Age Floods Institute
Glacial erratics of the Puget Lowland
Strewn among the forests of the Puget Lowland are an impressive array of Glacial Erratics. Although technically erratics include small pebbles and even sand grains in till, people tend to get the most excited by really big erratics- those the size of a house or building. Whatever their size, glacial erratics often reveal the direction of the ice flow that ripped them from their source region and deposited them at their resting place. Erratics can also help determine the thickness of the ice sheet that deposited them. In the Seattle area, it is relatively straightforward to determine the provenance of erratics containing quartzite, as that rock can not be found anywhere in the Olympics, the Cascades, or in the native bedrock of the Puget Lowland. Quartzite, which is durable and resistant to weathering, is commonly found in river valleys of central British Columbia and in the glacial tills of the Puget Lowland. However, granodiorite erratics found in the lowland and on the slopes of the Olympics and Cascades can be more difficult to decipher. The granodiorite in these erratics is chemically similar to rock bodies both in the British Columbia Coast Mountains and in the Cascades. In the mountains east of Bellingham, erratics found at 5,000 ft of elevation imply that the thickness of the Puget Lobe of the Cordilleran Ice sheet was at least 5,000 ft thick at that location. Maps showing the thickness of the Cordilleran Ice Sheet at various places in Western Washington are drawn, in part, by looking at the depositional altitude of erratics on ridges around the region. The two most massive erratics in the Puget Lowland are composed of Greenschist metamorphic rock. One of the giant erratics of Western Washington hides in the forest in Saratoga Woods Park on Whidbey Island. The Waterman erratic is 38ft high and has a circumference of 135 ft. Analysis of the rock shows that it is composed of Greenschist, a rock containing the low grade metamorphic minerals Chlorite and Epidote. The Greenschist chemically matches the rock of Mt. Erie, a prominent Roche Moutonée found 40 miles to the north on Fidalgo Island. An even larger erratic can be seen in a suburban neighborhood near Everett. The Lake Stevens erratic, 34 ft tall with a circumference of 210 ft, is considered the largest erratic in the Northwest, and possibly the largest erratic in the United States. This erratic is also composed of a Greenschist, although chemical analysis cannot give us a definitive origin for the big rock. There is similar Greenschist on the northern tip of Whidbey Island at Deception Pass, around Mt. Shuksan in the North Cascades, and also up the Fraser River in British Columbia. Article by Dale Lehman
Julie Bishop – Coeur du Deluge Volunteer
Julie Bishop is a founding member of the Coeur du Deluge Chapter of the ice Age Floods Institute and the only continuous member of the Chapter. She has served as Treasurer of our chapter for at least 15 years. Her service to the Coeur Du Deluge Chapter goes way beyond taking care of our financial needs. Julie was and is always there supporting our chapter’s activities (public lectures, field trips and the distribution of IAF-related educational material). She did and does this cheerfully and efficiently. She somehow finds time for our chapter even though she has a full-time job with the Idaho Department of Highways. She has another full-time job at home taking care of the family farm, especially their horses. Julie casually brushes off her contributions to IAFI and Coeur du Deluge, saying that although she did some of the “legwork to start the chapter” the ultimate responsibility for the creation of our chapter was based on the long time flood interest of her friends and co-founders of the CDD Chapter: Kermit Kiebert, Jon Burkhart and Mark Heisel. She continually underplays her contributions. But that is the grace and charm of our Julie Bishop. Thanks for you unstinting service Julie, it’s truly appreciated!
Yvonne Addington – Lower Columbia Volunteer
Lower Columbia Chapter/Ice Age Floods Institute (IAFI) is privileged to recognize our outstanding volunteer, Yvonne Addington, who has always been there for us, doing so much for our Chapter, and that’s been lots! Yvonne Addington looks to the future and connects people to make things happen. Even before the Ice Age Floods Institute was formed Yvonne was an Ice Age fan and was storing the bones of a mastodon dug up in Tualatin, Oregon. Tualatin decided to become an ice age destination and Yvonne was one of the most enthusiastic supporters. In many instances she was the driving force or one of a team of people who made the ice age theme come alive in Tualatin. If you dig into Tualatin’s many ice age interpretive displays, public artwork, artifacts like prehistoric animal bones and erratic rocks, you will find Yvonne’s impact. She arranged many of the donations to the Tualatin Public Library ice age displays including the mastodon which Yvonne stored for many years before it found a suitable home in the Tualatin Public Library. She supported the work of making Tualatin the first partner of the Ice Age Floods National Geologic Trail. She spearheaded the renaming of the Tonquin Trail to the Ice Age Tonquin Trail. The Tualatin River Greenway Trail, with its many ice age displays and interpretive signs, has an “Yvonne Addington Overlook” named in her honor for her extraordinary contributions to the mission of parks and recreation in Tualatin. She arranged the donation and transport of a 20,000 lb. granite boulder and a 5,500 lb. quartzite boulder to the Tualatin Historical Center. She encouraged the donation of a 9’ bronze mastodon statue at the Nyberg Rivers mall. She is a founding member of the Tualatin Ice Age Foundation which is working on the future creation of a Willamette Valley Ice Age Interpretive Center. She is an advocate for the preservation of Ice Age fossils, having kept them from being destroyed by identifying places where they can be adequately displayed, not only at Tualatin Heritage Center, but in larger venues including the proposed Ice Age Floods Interpretive Center and the now completed rebuilding of the West Linn City Hall. In addition to her long established career in public service at so many levels, including judgeship and public administration, she has played a significant role in our Lower Columbia Chapter. When we needed a new home for our featured speaker meetings she was there for us, bringing us into the Tualatin Heritage Center on the third Thursday of each month at 7PM. Today Yvonne is a respected member of the Lower Columbia Chapter Board of Directors.