Besides the buildings of Fort Yellowstone, the army left a legacy of policies and practices that served as precedents for the future National Park Service management of national parks. The army military commanders implemented backcountry patrols, wildlife protection and management, and protection of natural features. Army educational programs were later adopted by the National Park Service as part of their resource management. The army effectively implemented law enforcement priorities and developed a ranger force that provided for prosecution and punishment of those engaged in illegal activity in the national parks. The National Park Service carried over a version of the campaign hat worn by members of the army during the last years of their management of Yellowstone National Park for use by Park Rangers.