 In 1886, the War Department was given authority over the park and the U.S. Army began administering the park in August 1886.The Army established Camp Sheridan (Fort Yellowstone) at Mammoth Hot Springs as park headquarters and developed systems for conservation and resource management between 1886 and 1916 that served as foundations for the National Park Service, created in 1916.Boutelle supported the conservation of bison, advocated stocking streams to maintain fish populations, insisted that travelers use established campgrounds, and developed a system for rapid and effective response to fires, which at that point were primarily caused by park visitors.