Glacier National Park (Montana)

Yellowstone National Park (Montana/Wyoming)

Grand Teton National Park (Wyoming)

Craters of the Moon National Monument (Idaho)

Black Canyon of the Gunnison National Park (Colorado)

Cedar Breaks National Monument (Utah)

Capitol Reef National Park (Utah)

Arches National Park (Utah)

Canyonlands National Park (Utah)

Natural Bridges National Monument (Utah)

Bryce Canyon National Park (Utah)

Zion National Park (Utah)

Mesa Verde National Park (Colorado)

Grand Canyon National Park (Arizona)