Grand Pacific Glacier is a 25-mile (40 km) long glacier in British Columbia and Alaska. It begins in Glacier Bay National Park in the St. Elias Mountains, 7 miles (11.2 km) southwest of Mount Hay, trends east into the Grand Pacific Pass area of British Columbia, and then southeast to the head of Tarr Inlet at Alaska-Canada boundary, 68 miles (109 km) west of Skagway.