Author
United States. Forest Service
United States. Bureau of Land Management
12
Geological Survey (U.S.)
6
Geological Survey (U.S.),
4
Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
4
Maser, Chris
3
United States. Bonneville Power Administration
3
Crumrine, Milo D.
2
Douglas County (Or.)
2
Morgan, David S.
2
Pacific Crest Trail Association
2
Rodiek, Jon E.
2
Thomas, Jack Ward
2
United States. Bureau of Land Management. Prineville District
2
United States. Bureau of Land Management. Salem District
2
United States. Forest Service. Pacific Northwest Region
2
Atzet, Thomas
1
Beatty, Jerome S.
1
Bedard, William D.
1
Blue Mountain Ranger District (Or.),
1
Bowers, Wayne
1
Cameron, Kenneth A.
1
Cameron, Kenneth A.,
1
Columbia River Gorge Commission
1
Confederated Tribes of the Warm Springs Reservation of Oregon
1
Cooper Ornithological Society
1
Crumrine, Milo D.,
1
Detroit Ranger District (Or.),
1
Filip, Gregory M.
1
Forsman, Eric D.
1
Garrison, George A., 1917-
1
Hayes, Doris W.
1
Heppner Ranger District (Or.),
1
Larsen, Gary L.
1
Major, Jon J.
1
Major, Jon J.,
1
Malheur National Forest (Agency : U.S.),
1
Mathiasen, Robert L.
1
Morgan, David S.,
1
Mt. Hood National Forest (Agency : U.S.),
1
Northwest Interpretive Association
1
Oregon. Occupational Safety and Health Division
1
Oregon. State Parks and Recreation Department
1
Oregon. Water Resources Department
1
Pacific Northwest Research Station (Portland, Or.)
1
Prairie City Ranger District (Or.)
1
R.A.D. Outdoor Club
1
Rinella, Frank A.
1
Rinella, Frank A.,
1
Risley, John C.
1
more ...