As the Sun Sets 32x48 by Darlene Bushue.The setting sun aligned with the of tipis located on the Blackfeet Reservation in Northwestern Montana.The Blackfeet Reservation is in northwestern Montana along the eastern slopes of the Rocky Mountains. Its one-and-a-half million acres are bordered on the north by Canada and on the west by Glacier National Park.Of the approximately 15,560 enrolled tribal members, there are about 7,000 living on or near the reservation.