Sexton Glacier is located in the U.S. state of Montana
in Glacier National Park
. The glacier is situated in a cirque north of Going-to-the-Sun Mountain
and on the southeast slope of Matahpi Peak
at an elevation between 8,000 feet (2,400 m) and 7,000 feet (2,100 m) above sea level. The glacier covers an area of approximately 68 acres (0.28 sq km) and lost over 30 percent of its surface area between 1966 and 2005.