The Caribou National Forest in western Wyoming was named for Cariboo Jack, a miner seeking gold who found it in 1870 on what is now called Caribou Mountain. In recent times we remember Cariboo Jack as the namesake of Caribou National Forest.
President Theodore Roosevelt established the forest in 1903 along with the founding of the Pocatello Forest Reserve.
Although the majority of the Caribou National Forest is in Idaho, two counties in Wyoming claim the forest within their boundaries. The forest is just over a million acres, and includes the 47,000 acre Curlew National Grassland in Idaho. The forest is rich in natural resources and has over 250 streams and 8,100 acres of lakes and reservoirs. The forest lies on a geographical formation known as the Overthrust Belt, believed to hold large deposits of oil and gas. Located near Star Valley.