The Snake River Rising in western Wyoming, the river flows through the Snake River Plain of southern Idaho then through the rugged Hells Canyon area via northeastern Oregon and the rolling Palouse Hills to reach its mouth near the Washington Tri-Cities area, where it continues as part of the Columbia.
The Snake River Snake River Canyon is a large canyon formed by the Snake River in the Magic Valley region of southern Idaho, forming part of the boundary between Twin Falls County to the south and Jerome County to the north.