Author
United States. National Park Service,
U.S. Fish and Wildlife Service,
6
United States. Bureau of Land Management,
6
United States. Forest Service,
6
Glacier National Park (Agency : U.S.),
2
Theodore Roosevelt National Park (Agency : U.S.),
2
United States. National Forest Service,
2
Cammeron, Malcolm,
1
Cuyahoga Valley National Park (Agency : U.S.),
1
Deschutes National Forest (Agency : U.S.),
1
Devils Postpile National Monument (Agency : U.S.),
1
Elder, Christine,
1
Harpers Ferry Center (U.S.),
1
Hart Mountain National Antelope Refuge (Agency : U.S.),
1
Idaho. Department of Parks and Recreation,
1
Joshua Tree National Park (Agency : U.S.),
1
Junior Ranger Program (United States. National Park Service)
1
Kahrl, Andrew W., 1978-
1
Katen, Brian,
1
Organization of American Historians,
1
United States. Army. Corps of Engineers,
1
United States. Bureau of Land Management. Burns District,
1
United States. Bureau of Land Management. Lakeview District,
1
United States. Bureau of Land Management. Prineville District,
1