Region
United States
38
Colorado
3
Humboldt National Forest
2
Humboldt National Forest (Nev.)
2
Idaho
2
Nevada
2
Wyoming
2
Argentina
1
Arizona
1
California
1
China
1
Custer State Park
1
Middle East
1
Nez Percé Indian Reservation
1
North America
1
Northwest, Pacific
1
Northwestern States
1
Oregon
1
Santa Rita Experimental Range
1
Santa Rita Experimental Range (Ariz.)
1
Sierra Nevada (Calif. and Nev.)
1
South Dakota
1
Spokane Indian Reservation
1
Washington (State)
1