Washington
When the Missoula Floods slammed into the eastern flank of the Saddle Mountains, they split around the obstruction and carved the Othello Channels -- a network of parallel flood channels that slice through the basalt south of the mountain...
When the Missoula Floods slammed into the eastern flank of the Saddle Mountains, they split around the obstruction and carved the Othello Channels -- a network of parallel flood channels that slice through the basalt south of the mountain range. The channels were created as floodwaters, unable to flow over or through the Saddle Mountains, were forced around their eastern point, concentrating into powerful streams that excavated new pathways in the Columbia River basalt. Scooteney Reservoir, situated about nine miles southeast of Othello, fills one of these flood-carved depressions and offers year-round fishing for bass, walleye, and perch. The surrounding landscape is a textbook example of the floods' ability to create complex drainage patterns in a matter of hours, with channels that look like river valleys but were carved in days rather than millennia. A hiking trail through the area follows the channels and reveals the basalt walls, scoured surfaces, and flood-deposited gravels that tell the story. The Othello Channels demonstrate that the floods were not a single monolithic torrent but a complex system of water finding its way around obstacles.
Ice Age Floods National Geologic Trail
Situated about nine miles southeast of Othello, west of Highway SR-17, this body of water has a year-round open fishing season.
Smallmouth Bass, Largemouth Bass, Walleye, Bluegill sunfish, crappie, and Yellow Perch produce good action throughout the year. The lake has a large population of Lake Whitefish.
This lake is popular for ice fishing when conditions allow.
The Bureau of Reclamation campground has a developed access area with boat launch, a small dock, and toilets.
All around are signs of Ice Age floods and there effects on the landscape.
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Three vantages no single photograph can hold, the same treatment that made Dry Falls legible.
Ground-level panoramas along the feature, so the scale of the flood landscape is something you stand inside.
An aerial reveals the geometry of catastrophe: scour, channels, and bars that are invisible at eye level.
A model of a key outcrop you can rotate and measure in the browser, the rock itself, on the page.
Capture window mid-June through mid-July 2026 · slots fill on this page as the campaign delivers.
Flood-extent overlay shows the maximum reach of the Missoula Floods.
The site in its place along the flood path, with the maximum flood extent drawn over the modern map.
View on the interactive map Cinematic timeline · 3D flood · every captured site