Fort Yellowstone

Fort Yellowstone (initially established as Camp Sheridan (1886)) was established as a permanent U.S. Army post at Mammoth Hot Springs in Yellowstone National Park in 1891. In August, 1886 the U.S. Department of the Interior transfered administration of the park to the War Department and General Philip Sheridan ordered the U.S. Army to take control of the park. The Army established Fort Yellowstone as a permanent post and remained in control of the park until 1916 when it was transfered to the National Park Service.