The majority of the Forest lies in eastern Idaho and the remainder in western Wyoming. Situated next to Yellowstone and Grand Teton National Parks, the Forest is home to a diverse number of wildlife and fish, including Threatened and Endangered species, wilderness, scenic panoramas and intensively managed forest lands.

On a larger scale, the Forest lies along the Continental Divide, at the uppermost reaches of the Columbia River Basin, an ecosystem of 40 million acres extending from Western Washington to the Southeastern Idaho border and encompassing parts of Montana, Wyoming, Nevada and Utah. The Forest includes all or portions of several distinct mountain ranges, including the Lemhi, Beaverhead, Bitterroot, Centennial, Henry's Lake, Teton, Big Hole, Caribou, and Snake River Ranges. Elevations range from near 5,000 feet on the Snake River to over 12,000 feet on the Forest's western and easternmost reaches. The Forest contains the Island Park Caldera and several reservoirs. Topography ranges from rolling foothills to rugged, glaciated mountain peaks. Although most of the land is dry and semi-arid, 190 stream headwaters situated on the Forest provide varied vegetation to support a multitude of uses.

• Experience a day of floatboating or canoeing which starts at on the Henrys (North) and South Forks of the Snake River and on Falls River.
• Get a license to fish for a variety of game fish species such as rainbow, eastern brook, brown and cutthroat trout; kokanee salmon and whitefish.