Finished Puzzle Size: 9 x 11 in. Glacier National Park is a large wilderness area up in Montana's Rocky Mountains. It has glacier-carved peaks and valleys running up to the Canadian border. The park contains more than 700 miles of hiking trails and a route to the photogenic Hidden Lake. Many who go to the park enjoy backpacking, cycling and camping. While there, one can see diverse wildlife ranging from mountain goats to grizzly bears.