Region
Colorado
47
United States
47
Chatfield State Park (Colo.)
5
Alaska
4
Cherry Creek State Park (Colo.)
4
England
4
Utah
3
Antarctica
2
Buffalo Gap National Grassland (S.D.)
2
Chatfield State Park
2
Crowley County
2
Huerfano County
2
India
2
Japan
2
Montana
2
Nebraska National Forest (Neb. and S.D.)
2
New Mexico
2
New York (N.Y.)
2
Otero County
2
Outer space
2
Paris (France)
2
Pueblo County
2
South Dakota
2
West (U.S.)
2
Yorkshire
2
Admiralty Island (Alaska)
1
Africa, East
1
Australia
1
Bogotá (Colombia)
1
British Columbia
1
Buffalo Gap National Grassland
1
California
1
Canada
1
Cherry Creek State Park
1
Coney Island (New York, N.Y.)
1
Dog Mountains Quadrangle
1
Dog Springs Quadrangle
1
Dublin (Ireland)
1
El Salvador
1
Florida
1
Fort Ord
1
Fort Ord (Calif.)
1
Great Britain
1
Great Lakes Region (North America)
1
Great Plains
1
Greece
1
Ireland
1
Isle of Dogs (London, England)
1
Italy
1
Kansas
1
more ...