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- United States. Forest Service88
- United States. Congress. House. Committee on Resources. Subcommittee on Forests and Forest Health14
- United States. Forest Service, author12
- Detroit Ranger District (Or.), author9
- Kochenderfer, J. N.7
- United States. Congress. Senate. Committee on Energy and Natural Resources. Subcommittee on Forests and Public Land Management7
- United States. Forest Service. Intermountain Region7
- United States6
- United States. Forest Service. Pacific Northwest Region6
- United States. Forest Service. Southwestern Region6
- Gardner, Rulon B.5
- United States. Congress. House. Committee on Resources5
- Wrangell Ranger District (Alaska), author5
- Northeastern Forest Experiment Station (Radnor, Pa.)4
- Tongass National Forest (Agency : U.S.), issuing body4
- United States. Bureau of Land Management. Medford District, cartographer4
- United States. Forest Service, sponsoring body4
- United States. Forest Service. Pacific Southwest Region4
- Helvey, J. D.3
- Intermountain Research Station (Ogden, Utah)3