Tributories of the Snake include [Henrys Fork River]?, the [Boise River]?, the [Salmon River]?, and the [Clearwater River]?.
The Snake runs through a number of gorges, including Hell's Canyon, which at a maximum depth of 7,900 feet (2,410 m) is one of the deepest in the world. Its many hydroelectric power plants make it a major source of electricity in the region. Its upper and middle courses and its tributaries provide irrigation for various projects, including the Minidoka, Boise, Palisades, and Owyhee projects by the U.S. Bureau of Reclamation, and a variety of private projects such as at Twin Falls.