Geology of the Anlauf and Drain Quadrangles, Douglas and Lane Counties, Oregon Linn Hoover Published: 1963 Total Pages: 322 Get eBook
Geology & Mineral Resources of Douglas County, Oregon Len Ramp Published: 1972 Total Pages: 126 Get eBook
Umpqua River Basin, Milltown Hill Project Dam and Reservoir Construction and Operation, Elk Creek Subbasin, Douglas County Published: 1992 Total Pages: 452 Get eBook
Assessing Earthquake Hazards and Reducing Risk in the Pacific Northwest Timothy J. Walsh Published: 1996 Total Pages: 318 Get eBook
Mineral and Water Resources of Oregon Geological Survey (U.S.) Published: 1969 Total Pages: 490 Get eBook
Committee Prints United States. Congress. Senate. Committee on Interior and Insular Affairs Published: 1968 Total Pages: 1466 Get eBook