In 1870, Truman Everts visited what would two years later become Yellowstone National Park, traveling with an exploration party intent on mapping and investigating that mysterious region. Scattered reports of a mostly unexplored wilderness filled with natural wonders had caught the public s attention and the fifty-four-year-old Everts, near-sighted and an inexperienced woodsman, had determined to join the expedition. He was soon separated from the rest of the partyand from his horse, setting him on a grueling quest for survival. For over a month he wandered Yellowstone alone and injured,...