Further down its course, Snake River enters Hells Canyon, whereby it is impounded by three dams: the Oxbow Dam, Brownlee Dam, and Hells Canyon Dam. The river then flows toward Boise as well as the Idaho-Oregon border. The river enters the lower portion of its course as it leaves the Snake River Canyon, whereby the Malad River and Bruneau River serve as tributaries that deliver more water into the Snake River. Although part of the Columbia Plateau province's physiographic section, portions of the river's basin fall within the Basin and Range province. Then, after passing through Milner Dam and its reservoir, the river proceeds to flow into Idaho's Snake River Canyon under Perrine Bridge and over Shoshone Falls. Moving further downriver, Snake River's course takes it to Massacre Rocks State Park, which lies on the Oregon Trail's old path. Passing through Idaho's Swan Valley, the city of Idaho Falls, the river is then impounded by the American Falls Dam. After exiting Wyoming through the Snake River Canyon, the river enters the US state of Idaho through the Palisades Reservoir. The river's course then flows into Jackson Lake within Grand Teton National Park, followed by Jackson Hole in the South. Course Of The Snake River Shoshone Falls on the Snake River.Ĭonsidered one of the Pacific Northwest's great rivers, the Snake River originates near the mountains of the Continental Divide within northwest Wyoming.
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