Author
Lewis and Clark National Historic Trail (Agency : U.S.),
2
Federal Interagency Council on Trails (U.S.),
1
Prescott National Forest (Agency : U.S.),
1
U.S. Fish and Wildlife Service,
1
United States. Bureau of Land Management,
1
United States. Forest Service. Pacific Northwest Region,
1
United States. Forest Service. Southwestern Region,
1
United States. National Park Service,
1
United States. National Park Service. National Trails System Branch
1
United States. National Park Service. Rivers and Trails Conservation Assistance
1