Yellowstone Historical Society member and map expert Ralph Saunders provides a brief history of early mountain climbing in southern Montana, focusing on the unique role played by mountaineering pioneer Fred Inabnit. Among his many other accomplishments, Inabnit is best known today for a namesake mountain in the Beartooth Range and his extraordinary topographic relief map, which was the centerpiece of the Montana exhibit at the 1930 World’s Fair.