A herd of bison roam in Grand Teton National Park.

A view of the Salamander Glacier in Glacier National Park (left). A marmot eyes lunches near the summit of Grinnell Glacier (right).

A bison hunts in Grand Teton National Park.

The view from a trail at Grinnell Glacier Trail (top left). A coyote watches over the land in Yellowstone National Park (right). An avalanche creek found in Glacier National Park (bottom left).

A bird flies in Grand Teton National Park.

An osprey scans its surroundings in the Hayden Valley of Yellowstone National Park (left). A hot spring begins boiling at Glacier National Park (right).

A black bear eats huckleberries.

The sun sets over the Lamar Valley in Yellowstone National Park (left). A big horn ram explores near Grinnell Glacier (right).

The aftermath of a forest fire in Glacier National Park.

The sun sets on the Teton Range (top left). The view near Swiftcurrent Lake in Glacier National Park (top right). A landscape shot of Yellowstone National Park (bottom left). A goat roams in Glacier National Park (bottom right).