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Oregon City, OR 7.5' maps

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Pacific Northwest Urban Corridor Geologic Maps

Geologic maps and databases of the Oregon City, OR 30' x 60' Quadrangle

Index to 7.5' geologic quadrangle maps. Green links to online USGS maps; purple links to USGS paper maps; pink links to USGS maps in preparation; yellow links to Oregon Dept. of Geology and Mineral Industries maps.

Location of Oregon City, OR 100K quad.

Available 7.5' and 30' x 60' geologic maps

Tolan, Terry, Beeson, Marvin, and Wheeler, K.L., 1999, Geologic Map of the Scotts Mills, Silverton, and Stayton Northeast 7.5 Minute Quadrangles, Northwest Oregon: A Digital Database, U.S. Geological Survey Open-File Report 99-141.

Beeson, M.H., Tolan, T.L., and Madin, I.P., 1989, Geologic map of the Lake Oswego quadrangle, Clackamas, Multnomah, and Washington Counties: Oregon Department of Geology and Mineral Industries, Geological Map Series 59, scale 1:24000.

Madin, I.P., 1994, Geologic map of the Damascus quadrangle, Clackamas and Multnomah Counties: Oregon Department of Geology and Mineral Industries, Geological Map Series 60, scale 1:24000.

Madin, I.P., 1990, Earthquake hazard geology maps of the Portland metropolitan area: Oregon Department of Geology and Mineral Industries, Open-File Report 90-2, scale 1:24000.

Miller, P.R. and Orr, W.N., 1984, Geologic map of the Wilhoit quadrangle: Oregon Department of Geology and Mineral Industries, Geological Map Series 32, scale 1:24000.

Schlicker, H.G. and Finlayson, C.T., 1979, Geology and geologic hazards of northwest Clackamas County: Oregon Department of Geology and Mineral Industries, Bulletin 99, scale 1:24000.

Geologic maps in preparation

Wells, R.E., in preparation, Geologic map of the Newberg 7.5' quadrangle, Oregon, U.S. Geological Survey Miscellaeous Field Studies, scale 1:24,000.

Beeson, Marvin and Tolan, Terry, in preparation, Geologic map of the Canby 7.5' quadrangle, Oregon, U.S. Geological Survey Miscellaeous Field Studies, scale 1:24,000.