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  • October 2026

  • Sat 24

    Northrup Canyon Hike

    October 24 @ 9:30 am - 5:00 pm PDT
    Northrup Canyon, WA 47.87135657893373, -119.09144336040326, Grand Coulee, WA, United States

    Northrup Cnyn Flood Deposits Join the Lower Grand Coulee Chapter of the Ice Age Floods Institute on an outing on a Fall Hike in the Northrup Canyon, Old Wagon Road Trail Hike starts at 9:30 am Saturday, October 24, 2026 - 2.6 miles RT, 450 ft elevation gain Directions - Take State Highway 17 to Soap Lake. Stay on State Highway 17 for 21 miles north toward Coulee City. Just past the Dry Falls Interpretive Center, turn right (east) on US Highway 2 for 4.4 miles (passing turnoffs to Coulee City). At the “Y” junction, stay straight to merge onto State Highway 155 toward Electric City and Grand Coulee. From the US 2-State Highway 155 intersection go 19.2 miles (just south of Mile post 19) to turn right (east) up the hill on a gravel road identified as the Northrup Canyon Road. Follow the road 0.5 miles to its end at a locked metal gate where there is a small parking area, a vault toilet, and signage. A Discover Pass is required. The trail is closed November 15 through March 15 to protect bald eagle roosting habitat and nesting. It is a historically, geologically and ecologically unique area. Two different rock types and vegetation zones intermingle. Columbia Plateau basalts and Okanogan Highlands granites are both present in Northrup Canyon having been exposed by glacial activity and by the Missoula floods erosion. Shrub-steppe habitat is adjacent to native pine forest and the trail follows a historic road.

  • November 2026

  • Tue 3

    The Missoula Floods and Other Geological Happenings in the Columbia River Gorge

    November 3 @ 6:30 pm - 8:00 pm PST
    The Reach Museum 1943 Columbia Park Trl , WA, Richland, WA, United States

    The Lake Lewis Chapter of the Ice Age Floods Institute will host a chapter meeting and guest lecture with Jim O’Connor, U.S. Geological Survey - Portland, Oregon on November 3rd, 2026. This presentation will round out the 2026 lecture theme as we explore flood stories along the path from ancient Lake Missoula to the Pacific Ocean.  Starting with J Harlen Bretz and Ira Williams in 1915, geologists have been on the trail of the Missoula floods in the Columbia River Gorge. This work continues, addressing lingering and new questions, such as how many, how big, when, from where, and what did they do? Jim will summarize the current state of understanding, as well as other Columbia River Gorge stories being worked on by the USGS mapping group. This event will be hosted at the REACH Museum in Richland, Washington and is free to the public. No registration required. This event will also be broadcast live. To join this meeting online, please see the Zoom meeting information below. Chapter Meeting: 6:30 – 7:00 PM (PST) Guest Lecture w/ Jim O'Connor: 7:00 – 8:00 PM (PST) Zoom Meeting Details: Join Zoom Meeting https://us06web.zoom.us/j/89328567163?pwd=QgcNzwQoCUaqaHXaLM6vwiRTU3xuzk.1 Meeting ID: 893 2856 7163 Passcode: 729258   Questions may be emailed to lakelewis@iafi.org

    Free
  • December 2026

  • Sat 5

    Outing to STEAMBOAT ROCK – A Hike

    December 5 @ 10:00 am - 3:00 pm PST
    Steamboat Rock State Park 51052 Highway 155 N, Electric City, WA, United States

    Steamboat Rock is an imposing 800-foot-tall, 600-acre, flat-topped columnar basalt butte that resembles an immense stranded ship, located in the desert landscape of Central Washington's Grand Coulee. It is a structural remnant of an ancient ice-age waterfall carved out by cataclysmic glacial meltwater floods over 13,000 years ago. On December 5, 2026, the Lower Grand Coulee Chapter of the Ice Age Floods Institute will host an exploratory hike that will traverse the lower reaches around its base rather than hiking to the top of the rock. One of the primary goals of the hike is to locate glacially polished striated basalt/flood features around the bottom of Steamboat Rock. Additionally, there will be opportunities to talk about the basalt and granite formations present, identify Missoula Floods landscape features, and discuss soils, prehistory and history of the area. The hike will be as much as 3.5 miles long with about 200 feet of elevation gain  DATE – December 5, 2026 TIME – 10AM to 3PM WHERE – Steamboat Rock State Park, DISCOVER PASS IS REQUIRED Bring a sack lunch and snacks The park is located about 10 miles south of the city of Grand Coulee and about 18 miles north of Coulee City off SR155. Follow signs to the park for about 2.6 miles to a parking area on the far northeast end of the park.  

  • Mon 14

    The Floods that Shaped Southern Idaho

    December 14 @ 7:00 pm - 8:30 pm PST
    Zoom

       Shawn Willsey

  • August 2027

  • Sat 28

    POSTPONED Until August 2027: Bretz Was Right: A Pre‑Birthday Floods‑Fest

    August 28, 2027 @ 10:00 am - 2:00 pm PDT

    Update on 5/21/26: Sorry, but due to a heavy summer schedule we've had to postpone this event until next year to give us more time to plan. Our Cheney-Spokane chapter is planning a special late‑summer gathering on Saturday, August 28, 2027 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. We’re still shaping the details, but expect a relaxed, community‑friendly event that highlights the Bretz legacy and the remarkable landscapes he helped the world understand. More information will be posted as plans develop.   He mapped the scablands bold and bright, Said “Floods did this!” with all his might. For thirty years they told him “No”… ’Til evidence began to flow. So join us as we celebrate The man who made the floods make sense — A pre‑birthday bash for J Harlen Bretz, Who proved the skeptics wrong (immense!).  

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