- Oregon. Dept. Of Geology And Mineral Industries28
- Dalton, Meghan27
- Mason, Ralph S.18
- Newton, Vernon C.16
- Bachelet, Dominique14
- Fleishman, Erica14
- Rupp, David13
- Oregon. Dept. Of Fish And Wildlife. Research And Development Section10
- United States. Forest Service10
- Oregon Land Conservation And Development Commission9
- Oregon. State Water Resources Board8
- Hawkins, Linnia7
- United States. Department Of Agriculture. Economic Research Service7
- United States. Soil Conservation Service7
- Usda Field Advisory Committee7
- Usda Oregon River Basin Survey Party7
- Bowen, Richard G.5
- Oregon. Natural Area Preserves Advisory Committee5
- Frenkel, Robert E.4
- Kreag, Rebecca A.4