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Filters: Keyword is a tributary of the North Umpqua River  [Clear All Filters]
1997
U.S. Forest Service. Pacific Northwest Region. Stewart Mining Operation: Final Environmental Impact Statement . Portland, Oregon: USDA Forest Service, Umpqua National Forest, Pacific Northwest Region, 1997.
1960
Bauer, Jerry A., and Ron L. McDivitt. "Umpqua River." Oregon State Game Commission, Fishery Division. Annual Report - Fishery Division (1960): p.1-21.