Region
United States
29
Colorado
24
Tropics
13
Arizona
12
Oregon
12
Washington (State)
8
New Mexico
7
North America
7
Wyoming
7
Southwest, New
6
California
5
Florida
5
Montana
5
West (U.S.)
5
Arapaho National Forest
4
Barro Colorado Island
4
Canada
4
Costa Rica
4
Idaho
4
Panama
4
Rocky Mountains
4
Sierra Nevada (Calif. and Nev.)
4
Utah
4
Barro Colorado Island (Panama)
3
Gunnison National Forest (Colo.)
3
Hubbard Brook Experimental Forest (N.H.)
3
Latin America
3
San Juan National Forest
3
Shoshone National Forest
3
Snake River Region (Wyo.-Wash.)
3
Alaska
2
Amazon River Region
2
Appalachian Region, Southern
2
Arapaho National Forest (Colo.)
2
Australia
2
Challis National Forest
2
Coronado National Forest (Ariz. and N.M.)
2
Europe, Central
2
Flathead National Forest
2
Grand County
2
Grand Mesa National Forest
2
Great Basin
2
Gunnison County
2
Gunnison National Forest
2
Hubbard Brook Experimental Forest
2
India
2
Medicine Bow National Forest
2
Minnesota
2
Nebraska
2
Nebraska National Forest (Neb. and S.D.)
2
more ...