Snake River carves a dramatic path from Yellowstone through Idaho to join the Columbia and power the Pacific Northwest. Famous for whitewater rafting, salmon runs, and dramatic canyon vistas, it's vital for regional ecosystems and recreation.

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Geography

ContinentNorth America
RegionWestern United States
SubregionPacific Northwest
CountryUnited States
StateIdahoWashingtonOregonWyomingMontanaNevada
CountyTeton CountyBonneville CountyAda CountyElmore CountyWashington CountyBaker CountyGrant CountyWallowa CountyWinnemucca District
DistrictSnake River Basin
TimezoneAmericaLos Angeles
Latitude44
Longitude-117
Maps
🌘8:37 PM LOCAL TIME

Snake River originates in Yellowstone National Park and flows generally west and north through Wyoming, Idaho, Oregon, and Washington before merging with the Columbia near Pasco. At roughly 1,078 miles (1,735 km), it supplies water for agriculture, hydroelectric dams, and habitat connectivity. Along its course, it passes through notable sites like Jackson Hole, Hells Canyon, and Lewiston, offering opportunities for whitewater rafting, steelhead and salmon fishing, and multi-day river trips. The basin supports diverse wildlife: bald eagles, migratory fish, and large mammals like elk. Bankside trails, dam visitations, and hydropower facilities are common points of access; the river's health and flow have historically been subjects of environmental and tribal negotiations.

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