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Filters: Keyword is Elkton (Or.)  [Clear All Filters]
1946
Oregon. State Engineer, and United States. Geological Survey. Water resources of the State of Oregon: Summary of available Iiformation: 1937-1941 In Bulletin / Oregon State Engineer. Vol. no.10. Salem, Or.: Oregon. Office of the State Engineer,, 1946.
1914
Van Winkle, Walton. Umpqua River In Water-supply paper / Department of the Interior, United States Geological Survey. Vol. no.363. Quality of the Surface Waters of Oregon no.363. Washington, D.C., 1914.
1911
U.S. House of Representatives. Umpqua River, Oreg. Letter from the Secretary of War, transmitting, with a letter from the chief of engineers, report on preliminary examination of Umpqua River, Oreg., from Scottsburg to Roseburg, Oreg. In House Document. Vol. 62nd Congress, 2nd session, no.276. Examination of Umpqua River, Oreg. 62nd Congress, 2nd session, no.276. Washington, D.C.: U.S. Government Printing Office, 1911.