Region
Colorado
24
Douglas County
7
Garfield County
5
United States
5
Montrose County
4
Chaffee County
3
Eagle County
3
El Paso County
3
Mars (Planet)
3
Elbert County
2
Park County
2
Teller County
2
Atlantic Coast (U.S.)
1
Delta County
1
Europe
1
Guiana Highlands
1
Gulf Coast (U.S.)
1
Gulf Islands National Seashore (Fla. and Miss.)
1
Gunnison County
1
Hawaii
1
Kilauea Volcano
1
Kilauea Volcano (Hawaii)
1
Pacific Coast (U.S.)
1
Pitkin County
1
Presidio of San Francisco (Calif.)
1
Summit County
1
Venezuela
1