Author
United States. Department of State. Bureau of Oceans and International Environmental and Scientific Affairs,
3
Walker, Genevieve,
3
Bass Lake Ranger District (Calif.),
1
Colville National Forest (Agency : U.S.),
1
Hell Canyon Ranger District (S.D.),
1
Sierra National Forest (Agency : U.S.),
1
United States. Forest Service
1
United States. Forest Service,
1
United States. Forest Service. Southwestern Region,
1
United States. Forest Service. Washington Office,
1