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