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Pitney, W. E., and W. O. Saltzman. "Umpqua River studies." Oregon State Game Commission, Fishery Division. Annual Report - Fishery Division (1954): 1-13.
Newcomb, Hugh Ross, and Leonard M. Mathisen. "The Umpqua River Study." Oregon State Game Commission Bulletin 1, no. 9 (1946): p.1, 7-8.
The Umpqua River Study: A Joint Report., 1946.
Newcomb, Hugh Ross. "Umpqua River Study continued." Oregon State Game Commission Bulletin 3, no. 9 (1948): 1, 4,7-8.
Allan, Jonathan C., Joseph Zhang, Fletcher E. O’Brien, and Laura L. S. Gabel. Umpqua River Tsunami Modeling: Toward Improved Maritime Planning Response In Open-File Report (Oregon. Department of Geology and Mineral Industries) . Vol. no.O-22-07. Portland, Or.: Oregon. Department of Geology and Mineral Industries, 2022.
Umpqua River Valley Pulp and Paper Development Study In Sandwell and Company. Report. [Seattle], 1958.
Oregon Secretary of State.,. Umpqua River Water and Fish Bill In Oregon. Office of the Secretary of State. Voters pamphlet. Salem, Or., 1928.
Oregon. Dept. of Fish and Wildlife. Umpqua River winter steelhead In Hatchery and Genetic Management Plan. [Salem, Or.?]: Oregon Dept. of Fish and Wildlife, 2006.
Oregon. Dept. of Fish and Wildlife. Umpqua River winter steelhead In Hatchery and Genetic Management Plan. [Salem, Or.?]: Oregon Dept. of Fish and Wildlife, 2016.
Anonymous. "Umpqua season question settled." Pacific Fisherman 18, no. 9 (1918): p.35.
Anonymous. "Umpqua strike is short." Pacific Fisherman 30, no. 12 (1932): p.61.
Anonymoous. "Umpqua summer steelhead." Oregon State Game Commission Bulletin 13, no. 7 (1958): p.3, 6-7.
U.S. Army Corps of Engineers. Portland District, and Oregon Institute of Marine Biology. Umpqua Training Jetty Extension Monitoring Study: 1980 Preimpoundment Report. Portland, Or.: The District, 1981.
Hancock, Danil R.. Umpqua Training Jetty Extension Monitoring Study: Final Report. [Portland, Or.]: Portland District, U.S. Army Corps of Engineers, 1985.
Lawrence, William. Umpqua Valley In Herbarium Photographs, 1904-1963 (P 093)., 1918.
Minor, Rick, Don Whereat, and Ruth L. Greenspan. "Umpqua/Eden revisited: notes on the archaeology and ethnohistory of a Lower Umpqua Indian village on the Central Oregon Coast." Journal of Northwest Anthropology 46 (2012): p.39-64.
Ross, R. E., and S. L. Snyder. "The Umpqua/Eden Site (35DO83): Exploitation of marine resources on the Central Oregon Coast." In Association of Oregon Archaeologists Occasional Paper , p.80-101. Vol. no.3. Contributions to the Archaeology of Oregon.1983-1986 no.3., 1986.
Johnson, Laura. Understanding Freshwater Mussel Distribution, Abundance, and Demography in the South Umpqua River Basin, Oregon: Impacts of Land Use and Stream Hydraulics. M.S. ed. Eugene, Or.: University of Oregon, 2020.
Johnson, Laura. Understanding Freshwater Mussel Distribution, Abundance, and Demography in the South Umpqua River Basin, Oregon: Impacts of Land Use and Stream Hydraulics. M.S. ed. Eugene, Or.: University of Oregon, 2021.
Northwest Fisheries Science Center(U.S.).. Updated status of federally listed ESUs of west coast salmon and steelhead In NOAA Technical Memorandum NMFS-NWFSC, Edited by Thomas P. Good, Robin S. Waples and Pete Adams. Vol. no.66. Seattle, Wash.: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Northwest Fisheries Science Center,, 2005.
Umpqua National Forest. Timber Planning Team, and U. S. Forest Service. North Umpqua Ranger District. Upper and Lower Steamboat Creek Watershed Analysis : Iteration 1.1. [Roseburg, Or.]: Umpqua National Forest, North Umpqua Ranger District, 2007.
Geyer, Nancy A.. Upper Cow Creek Watershed Assessment and Action Plan. Roseburg, Or.: Umpqua Basin Watershed Council, 2003.
Newcomb, H. R.. "Upper Umpqua River Investigations." Oregon State Game Commission, Fishery Division. Annual Report - Fishery Division (1949): p.5-14.
Snyder, Kai, Tim Sullivan, Deian Moore, Richard Raymond, and E&S Environmental Chemistry, Inc.. Upper Umpqua River Watershed Assessment: Final Report. Corvallis, Or., 2006.
Penaluna, Brooke E., Jonathan D. Burnett, Kelly Christiansen, Ivan Arismendi, Sherri L. Johnson, Kitty Griswold, Brett Holycross, and Sonja H. Kolstoe. "UPRLIMET: UPstream Regional LiDAR Model for Extent of Trout in stream networks." Scientific Reports (Nature Publishing Group) 12 (2022): 15 p.

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