Region
Colorado
100
United States
57
Southwest, New
28
West (U.S.)
22
Arizona
16
Mesa Verde National Park (Colo.)
15
North America
14
Utah
12
New Mexico
11
Mesa Verde National Park
8
Great Plains
7
Montana
6
America
4
Colorado River Watershed (Colo.-Mexico)
4
Little Bighorn Battlefield National Monument (Mont.)
4
Mexico
4
Chaco Canyon (N.M.)
3
Southern Ute Indian Reservation
3
Southern Ute Indian Reservation (Colo.)
3
Southern Ute Indian Tribe of the Southern Ute Reservation, Colorado
3
Uintah and Ouray Indian Reservation (Utah)
3
Wyoming
3
Alaska
2
California
2
Canada
2
Casa Grande (Ariz.)
2
Chaco Canyon
2
Colorado Plateau
2
Curecanti National Recreation Area (Colo.)
2
Four Corners Region
2
Grand Junction
2
Great Basin
2
Guadalupe Mountains National Park (Tex.)
2
Little Bighorn Battlefield National Monument
2
Missouri
2
Rocky Mountains
2
Southwest, Old
2
Texas
2
Uintah and Ouray Indian Reservation
2
Ute Indian Reservation (Colo.)
2
Arkansas River Watershed
1
Black Mesa (Navajo County and Apache County)
1
Black Mesa (Navajo County and Apache County, Ariz.)
1
British Columbia
1
Canyon Pintado Historic District (Colo.)
1
Cerro Colorado Site (Catron County, N.M.)
1
Chaco Canyon Region
1
Chama Valley (Colo. and N.M.)
1
Chelly, Canyon de (Ariz.)
1
Chesapeake Bay Region (Md. and Va.)
1
more ...