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2006
Snyder, Kai, Tim Sullivan, Deian Moore, Richard Raymond, E&S Environmental Chemistry Inc., and Umpqua Basin Watershed Council. Lower Umpqua River Watershed Assessment: Final Report., 2006.
→ static1.squarespace.com/static/5a0dcc9bbce17698a0425591/t/5a0dcdfad63352ad667fdbf6/1339723394497/LowerUmpquaRiver.zip
Snyder, Kai, Tim Sullivan, Deian Moore, Richard Raymond, E&S Environmental Chemistry Inc., and Umpqua Basin Watershed Council. Middle Umpqua River Watershed Assessment: Final Report., 2006.
→ static1.squarespace.com/static/5a0dcc9bbce17698a0425591/t/5a0dcdfad63352ad667fdbf7/1339723516703/MiddleUmpquaRiver.zip
1997
Suislaw National Forest. Lower Umpqua Watershed Analysis. OR: Siuslaw National Forest, 1997.
1994
Briggs, Gregory George. Coastal Crossing of the Elastic Strain Zero-Isobase, Cascadia Margin, South Central Oregon Coast In Dissertations and Theses Paper. M.S. ed. Vol. no.4739. Portland, Or.: Portland State University, 1994.
→ archives.pdx.edu/ds/psu/27772
1989
Oregon. Divisiion of State Lands. Heads of Tide for Coastal Streams in Oregon. [Salem, Or.]: Oregon Division of State Lands. Engineering Section, 1989.
→ www.oregon.gov/dsl/WW/Documents/heads_of_tide_1989.pdf
1985
Bottom, D. L., P. J. Howell, and J. D. Rodgers. The Effects of Stream Alterations on Salmon and Trout Habitat in Oregon. Portland, Or.: Oregon Department of Fish and Wildlife, 1985.
→ ir.library.oregonstate.edu/concern/technical_reports/r494vk98q
1975
Land and Water Use Plan for the Umpqua Estuary. Reedsport, Or.?: Umpqua Estuary Study Group?, 1975.
Umpqua Estuary Study Group. Umpqua Estuary Plan: Discussion Draft. [Reedsport, Or.?]: [Umpqua Estuary Study Group?], 1975.
1973
Jefferson, Carol A.. Salt Marsh Vegetation Map of the Umpqua River. [Florence, Or.] , 1973.
→ oregondigital.org/catalog/oregondigital:fx71d0695
1972
Touhey, Robert James. Biodegradability and Oxygen Uptake Studies on Resuspended Estuarine Bottom Sediments. M.S. ed. Corvallis, Or.: Oregon State University, 1972.
→ ir.library.oregonstate.edu/concern/technical_reports/6t053h06t