Pumpelly Glacier is located in the U.S. state of Montana in Glacier National Park. The glacier is situated immediately northeast of Blackfoot Mountain at an elevation between 8,500 feet (2,600 m) and 8,000 feet (2,400 m) above sea level. Pumpelly Glacier is just west of the Continental Divide and adjacent to Pumpkin Glacier, the two glaciers separated by crevasses. The glacier was named after Raphael Pumpelly who had first sighted the glacier in 1883. Pumpelly and Pumpkin Glaciers cover 310 acres (1.3 sq km) as of 2005, a 15 percent reduction in area since 1966.