On August 17, 1886, Capt. Moses Harris and the troops of Company M rode into Yellowstone to take over guardianship of America's first national park. Replacing an underfunded and understaffed civilian administration, the army's assignment in Yellowstone was supposed to be "temporary duty." That temporary duty ended up lasting nearly thirty-two years. Lead author of Images of America: Fort Yellowstone, Elizabeth Watry, explores the time-honored legacy of the United States Army in Yellowstone National Park and the enduring cultural identity of the park's headquarters once known as Fort Yellowstone. www.montanahistoricalsociety.org