Things To Do

Traveling to some of the locations below? You may be driving right next to an Ice Age Floods National Geologic Trail partner site or natural feature! Make a detour to learn more about floods or see some evidence on the landscape.

Note: the below list is not a comprehensive list of all sites along the geologic trail. For a complete list, check out Plan Your Visit to search by state, or navigate via the interactive map.

A heard of dark brown bison munch on dried green grass with a rolling tan hill behind them, showing textured ripple marks.
National Bison Range, with strandlines in the background.


Missoula, Montana

Flying into Missoula on your way to Glacier National Park? Stop by the National Bison Range and the Camas Prairie Ripples on your way.

Large grey boulders create a cascading effect on a river, creating a wide white waterfall.
Spokane Falls, Spokane's Riverfront Park


Spokane, Washington

Have a bit of extra time in Spokane and want to go for a drive? Explore Fort Spokane, part of Lake Roosevelt National Recreation Area. The Fort Spokane Visitor Center is open during the summer, while the grounds are open year round.

Aerial viewpoint of high brown canyon walls with a deep blue lake at the base of the canyon.
Sun Lakes-Dry Falls State Park

NPS / Katherine Person

Grand Coulee Dam, Washington

Heading south from Grand Coulee Dam? Explore the Coulee Corridor and more evidence of the floods at Steamboat Rock State Park and Sun Lakes-Dry Falls State Park (which also has Ice Age Floods exhibits in the visitor center!)

A towering white waterfall pours from high dark grey rock into a murky pool of water.
Palouse Falls State Park


Tri-Cities (Richland, Kennewick, Pasco), Washington

Home of Lake Lewis during the Ice Age floods, hike Candy Mountain to see erratic boulders left behind when the waters moved on.

Grey-blue water falls into a concentrated area that is shaped like a horse shoe.
Willamette Falls


Portland, Oregon

Head into the Willamette Valley, see a 90-ton erratic rock that has travel over 500 miles at Erratic Rock State Natural Site.

Planning to travel along the Columbia River Gorge National Scenic Area?

A large meteorite, brown with grey crevices, is displayed outside of a brown shingled building with signs for the Natural and Cultural History Museum.
Model of the Willamette Valley Meteorite, outside of the Museum of Natural and Cultural History in Eugene, OR.


Eugene, Oregon

Not too far away, near Corvallis, you’ll also be able to check out a largely unplowed native grassland and ash woodland, Willamette Floodplain National Natural Landmark.

Last updated: February 9, 2024

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Contact Info

Mailing Address:

Program Manager
Ice Age Floods National Geologic Trail
1008 Crest Drive

Coulee Dam, WA 99116


(509) 237-9722

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