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Margins of the Eastern Cascades Field Trip

Central Washington University 400 E University Way, Ellensburg, WA, United States

Margins of the Eastern Cascades:  Western Kittitas Basin—Lower Teanaway—Lower Swauk Loop Topics will include volcanism, tectonics, alpine glaciation, landslides, and stream channel changes in the area between Ellensburg, Cle Elum, and Lauderdale Junction.  Here’s the schedule and the topics to be covered:  9:30     Meet at CWU Parking Lot O-5 9:45     Depart 10:00  Stop 1—WA Highway 10 Along Yakima River—Climate transitions; Yakima River Watershed; Ellensburg Formation origin & age; 10:45  Depart 11:00  Stop 2—Hayward Hill Road—Thorp Gravels origins & age; Alpine glaciation; Outwash terraces 11:45  Depart 12:00  Stop 3—Teanaway River Floodplain—Columbia River Basalts; Teanaway River floodplain, discharge & flooding; Lookout Mountain landslide 12:45  Depart to find restrooms in Cle Elum 1:30     Stop 4—Swauk Prairie—Teanaway Formation flow origin & age; Glaciers & climate; Glacier impacts on Teanaway & Swauk paths 2:15     Depart 2:30     Stop 5—Horse Canyon Overlook—Horse Canyon enigma; Wrap-up 3:15     Depart 3:30     Arrive in Ellensburg  Logistics: This trip is free and open to the public. Plan on carpooling.  We have, at most, about 30 parking spots at Stop 1. There will be very little hiking associated with this field trip.  On all stops, we will be within a couple of hundred feet of our automobiles. There are no restroom or picnic facilities along our field trip route.  Therefore, we will break briefly so you can make a very quick trip to Cle Elum between Stop 3 and Stop 4.  Plan on eating lunch/snacks on the road or at the stops.  There won’t be a formal lunch stop given the lack of facilities and time. Dogs and kids are fine to bring as long as they are well-behaved. Dress for the weather.  Early April here can vary from sunny and warm to windy & chilly, all in a day!  A windbreaker is a really good idea. I will post a pdf of the field guide by 19 March on my CWU website at https://www.cwu.edu/academics/geography/_documents/karl-lillquist.php.  Scroll down the page to “Field Guides”.  You will find it under “Margins of the Eastern Cascades”.  Feel free to download and bring it on the field trip in digital format or print it out. The Ellensburg Chapter of the Ice Age Floods Institute will also provide ~40 hard copies of the field guide for the trip.  There is no cost for the field guides.  However, if you are not a member of the Ellensburg Chapter, please consider making a donation to the chapter to help cover the costs of the field guides (each cost ~$12). I hope you can join us on Saturday April 5th. Karl Lillquist

Cheney-Spokane Chapter Hike – Fishtrap Lake Scablands

Fishtrap Lake North Loop Sprague, WA, United States

The Cheney-Spokane Chapter of the IAFI is scheduling a hike at the north loop trailhead of Fishtrap Lake on Saturday, April 5th. 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. You will meet the leader at the trailhead. Fishtrap Lake, Washington (BLM Photo) Description of Hike The hike will begin and end at the north trailhead at Fishtrap Lake. The hike will follow the north loop trail, with a total length of about 5 miles.  The trail is mostly single track over dirt and rock, with an elevation gain and loss of about 500 feet.  The hike will provide an intimate view of the channeled scablands that were carved out by the ice age floods.  Features will include pothole lakes, rock benches, Mima mounds, and streamlined and scarped Palouse hills.  The hike will also provide wide open views of Fishtrap Lake and the surrounding country.  This hike is included in On the Trail of the Ice Age Floods – Northern Reaches, by Bjornstad & Kiver.  However, we will be following trails that were constructed after the book was published. Directions to the trailhead From I-90 take Exit 254 and proceed south 2.4 miles on the Sprague Highway. Turn left (east) on Fishtrap Road and proceed 0.6 miles to the trailhead parking on the right. Register for the hike using the buttons below. This event will be limited to 20 hikers. Items 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. The hike is free; however, donations for support of Chapter activities will be accepted. For addition questions contact Don at 509-891-5875.

Mapping the Pacific Northwest’s Glacial Legacy

Cheney Community Library 610 1st St, Cheney, WA

Enhanced LIDAR images (WA-DNR) Glaciers have shaped much of the Pacific Northwest’s landscape over the past 15,000 years. The Cordilleran ice sheet, repeated ice age floods, and expansive alpine glaciation have left their distinctive fingerprints on the topography of our region. Geologists and cartographers have been mapping and interpreting glacial landforms since the late 19th century. In the past decade, the Washington Geological Survey has created new maps that build upon this rich cartographic history by fusing older datasets and techniques with modern insights and technology, such as lidar. Using both historical and modern maps, this presentation by Daniel Coe, Washington Geologic Survey, Seattle, will be a visual journey through the Pacific Northwest’s glacial past and present. Presented in partnership with Ice Age Floods Institute (IAFI) Registration required on SCLD website. Registration opens at 6:30 PM Tuesday, March 18, 2025.)

Tom Pierson – Geology of the Gorge

White Salmon Valley Community Library 77 NE Wauna Ave, White Salmon, WA, United States

Tom Pierson, retired USGS Hydrologist, will present highlights and interactions in a talk about the Geology of the Columbia River Gorge. Tom will talk about how the Columbia River Basalt (CRB), BIG floods (Missoula and otherwise), big landslides, regional tectonics, and volcanoes have all played significant roles that many may not recognize in the features and character of the Gorge we see today. This talk will be hosted by the Columbia River Gorge Chapter of Ice Age Floods Institute at the White Salmon Community Library, beginning at 5:30pm on Monday, April 28.

How the Ice Age Floods Changed the Course of the Palouse River

Moran Prairie Library 6004 S Regal St, Spokane, WA

Palouse Falls - Photo Glenn Traver Before the Ice Age Floods, the Palouse River would have flowed through present day Washtucna, Kahlotus, Connell, Mesa, and Eltopia before entering the Columbia River near the Pasco Airport. Today, it takes a fifty-mile shortcut to the Snake River at Lyons Ferry via the Palouse Canyon and Palouse Falls. In this presentation by Lloyd Stoess, President, Palouse Falls Chapter, IAFI, we look at the two factors that caused this dramatic shift—either one by itself would not have been enough. To examine when this happened, we look at some possibilities and clues recently discovered by scientists. Presented in partnership with Ice Age Floods Institute (IAFI) (Registration required on SCLD website. Registration opens at 6:30 PM Monday, March 31, 2025.)

2025 IAFI Membership Meeting – Gorge-ous Gathering May2-3-4

Columbia Gorge Discovery Center 5000 Discovery Dr., The Dalles, OR, United States

 Celebrating Ice Age Floods Institute's 30th Anniversary The annual IAFI Membership Meeting is coming to the Columbia Gorge this May 2-3, 2025, and all our members and their guests are cordially invited to come experience some of the best and most interesting features the Gorge has to offer. There’ll be opportunities to explore storied Gorge wildflowers and native plants, geology and winery field trips, whitewater rafting, a membership meeting/dinner and a presentation by the ever-entertaining Nick Zenter. **REGISTER HERE!**    Check-in begins each day at 8:30 AM at the Columbia Gorge Discovery Center    **REGISTER HERE!*** Friday, May 2nd, will be action packed with activities during the day. Choose between a guided Spring Wildflower Walk, a Journey Through Terroir field trip, an Unveiling the Gorge field trip (repeated on Sunday, May 4). Spaces on these activities is limited, the Friday Spring Wildflower Walk and Unveiling the Gorge field trip are now full. There are also opportunities available every day for full-day or half-day adventure whitewater raft trips on the Klickitat or White Salmon Rivers with Wet Planet Rafting, a local world-class rafting company. Friday evening will feature our members meeting and dinner, followed by an entertaining and informative presentation by the inimitable Nick Zenter exploring and geolocating J Harlan Bretz’s field notes. Limited seats available. Register today! Jim O'Connor Richard Waitt Saturday, May 3rd, will feature the main Ice Age Floods Gorge Geology Field Trip – Explore evidence of the Ice Age Floods in the Columbia Gorge led by USGS expert geologists Jim O’Connor and Richard Waitt. This  field trip will examine the geology of the Columbia River Gorge with emphasis on the effects of the Ice Age Missoula floods, examining key sites and discussing the latest research. Learn more about the Missoula Floods, explore dramatic flood landforms, and enjoy beautiful vistas, lunch at the Deschutes River Park (order a box lunch or bring your own), and a no-host afternoon recap at Maryhill Winery. Buses leave May 3rd, 9:00 AM. This field trip is full. Sunday, May 4th, the Friday Unveiling the Gorge field trip is being repeated. There is also plenty to see and do in the Gorge to keep you fascinated and engaged if you can stay another day. Visit iconic Multnomah Falls (I-84 access only) and spectacular Vista House at Crown Point overlook. Visit Timberline Lodge, a stunning 1930’s CCC project, on the snowy upper flanks of Mt. Hood. Travel the Hood River Fruit Loop or ride the Mt Hood Railroad Hike one (or more) of the innumerable and spectacular Gorge hiking trails Take Windsurfing and Kiteboarding lessons or just watch the action Enjoy fine dining, artisan wineries, breweries, museums and shops throughout the Gorge. There’s so much more to see and do that we can’t even begin to list it all.

1.5 Million Years of Climate Data from the Antarctic Drilling Project

(05Dec2024) The Mid-Pleistocene Transition (MPT), where the Pleistocene glacial cycles changed from 41 to ∼100 kyr periodicity, is one of the most intriguing unsolved issues in the field of paleoclimatology. Jerry McManus is an AGU Fellow who is Chair of Columbia University's Environmental School. He spent time in Antarctica as part in a European-led consortium project to drill down an existing drill hole to punch back another half-million years of climate data from ice in the Antarctic Ice Sheet. The goal of the project was to get a continuous ice record reaching back past the Mid Pleistocene Transition (MPT) to get a better perspective on the short cycle into the long cycle transition. At our May meeting, Jerry will present an early glimpse on what the team discovered.  The May 05 meeting will be held in Bellevue College, Room B104.  The program begins at 7:00 PM.

How Do They Know? Major Findings About the Ice Age Floods

Spokane Valley Library 22 N Herald Rd, A, Spokane Valley, W, WA, United States

  Maps Have you ever been watching a science program and wondered “How do they know that?” Dr. Gary L. Ford, President, IAFI, will briefly discuss the how and who “figured it out” regarding aspects of the Ice Age Floods, looking at five questions. These include: how we know there was a huge glacial lake in western Montana thousands of years ago, how we know it drained rapidly perhaps a hundred times, about how many floods there were and when they occurred, where the floodwater came from, and about how long it took the floodwater to get to the ocean. We also go over which answers to these questions are still being debated by researchers. Presented in partnership with Ice Age Floods Institute (IAFI)

Cheney-Spokane Chapter Hike – Palisades Park

Palisades Park 2-198 S Rimrock Dr, Spokane, WA, United States

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.    

Northeastern Waterville Plateau Field Trip

Leahy Junction Coulee City, WA, United States

2025 Ellensburg Ice Age Flood Institute Field Trip - "Northeastern Waterville Plateau". Topics will center around the Okanogan Lobe of the Cordilleran Icesheet and Ice Age floods in a now farmed and ranched landscape in a part of Central Washington few of us visit.  The trip will begin near Leahy Junction north of Coulee City. All trips are free and open-to-the-public.  We travel by car pool.  More details will be forthcoming via email. Karl Lillquist

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