Glacier National Park, 1,013,572 acres (410,497 hectares), NW Mont.; est. 1910. Straddling the Continental Divide, the park contains some of the most beautiful primitive wilderness in the Rocky Mts. There are 25 glaciers (down from some 150 when the park was established), more than 200 glacier-fed lakes (Lake McDonald and St. Mary Lake are the largest), high peaks, sheer precipices, large forests, waterfalls, much wildlife, and a great variety of wildflowers. Along with the adjacent Waterton Lakes National Park (Canada), it forms Waterton-Glacier International Peace Park (est. 1932). See National Parks and Monuments (table).