Find geologic maps

Pacific Northwest Urban Corridor geologic maps

30'x60' (1:100,000 scale) maps in the Pacific Northwest geologic mapping and urban hazards study area. Click to on any quad to find maps.

Geologic mapping in the urban corridor is a cooperative effort among the USGS, Washington Division of Geology and Earth Resources, Oregon Dept. of Geology and Mineral Industries, University of Washington (GeoMapNW), Oregon State University, and Portland State University.

This website provides downloadable geologic maps, mostly at 30' x 60' (1:100,000) and 7.5' (1:24,000) scale, as produced by the USGS and its university cooperators. Selected USGS paper maps and recent maps of the Washington Division of Geology and Earth Resources (WDGER) and the Oregon Dept. of Geology and Mineral Industries (DOGAMI) that are relevant to the project are also indexed here.

The Washington Division of Geology and Earth Resources also provides digital coverage of much of the state at 1:100,000 scale. Contact Washington Division of Geology and Earth Resources for information.

More geologic map links can be found on the left hand side of this page.

Pacific Northwest Project maps on-line

Blakely, R.J., Wells, R.E., and Weaver, C.S., 1999, Puget Sound aeromagnetic maps and data, U.S. Geological Survey Open-File Report 99—514.

Booth, Derek B., Troost, Kathy Goetz, and Shimel, Scott A., 2005, Geologic
map of northwestern Seattle (part of the Seattle North 7.5' X 15'
quadrangle), King County, Washington: U.S. Geological Survey Scientific
Investigations Map 2903, 1:12,000 [available on the World Wide Web at URL
http://pubs.usgs.gov/sim/2005/2903/ ].

Booth, Derek B., and Troost, Kathy Goetz, 2005, Geologic map of the Olalla 7.5' quadrangle, King, Kitsap, and Pierce Counties, Washington: U.S. Geological Survey Scientific Investigations Map 2902, 1:24,000 [available on the World Wide Web at URL http://pubs.usgs.gov/sim/2005/2902/ ].

Booth, D.B., and Waldron, H.H, 2004, Geologic Map of the Des Moines 7.5' Quadrangle, King County, Washington: U.S. Geological Survey Scientific Investigations Map 2855, scale 1:24,000. (http://pubs.usgs.gov/sim/2004/2855).

Booth, D.B., Waldron, H.H, and Troost, K.G., 2004, Geologic Map of the Poverty Bay 7.5' Quadrangle, King and Pierce Counties, Washington: U.S. Geological Survey Scientific Investigations Map 2854, scale 1:24,000. (http://pubs.usgs.gov/sim/2004/2854).

Evarts, Russel C. and O'Connor, Jim E., 2008, Geologic map of the Camas quadrangle, Clark County, Washington, and Multnomah County, Oregon: U.S. Geological Survey Scientific Investigations Map 3017, scale 1:24,000, 31 p. [http://pubs.usgs.gov/sim/3017/].

Evarts, R.C., 2006, Geologic map of the Lacamas Creek quadrangle, Clark County, Washington: U.S. Geological Survey Scientific Investigations Map 2924, scale 1:24,000 [available on the World Wide Web at URL http://pubs.usgs.gov/sim/2006/2924/ ].

Evarts, R.C., 2006, Geologic map of the Yacolt quadrangle, Clark County, Washington: U.S. Geological Survey Scientific Investigations Map 2901, scale 1:24,000 [available on the World Wide Web at URL http://pubs.usgs.gov/sim/2006/2901/ ].

Evarts, Russell C., 2005, Geologic map of the Amboy quadrangle, Clark and Cowlitz Counties, Washington: U.S. Geological Survey Scientific
Investigations Map 2885, scale 1:24,000.
(http://pubs.usgs.gov/sim/2005/2885).

Evarts, Russell C., 2004, Geologic map of the Ariel quadrangle, Clark and Cowlitz Counties, Washington: U.S. Geological Survey Scientific
Investigations Map 2826, scale 1:24,000.
(http://pubs.usgs.gov/sim/2004/2826).

Evarts, Russell C., 2004, Geologic map of the Ridgefield 7.5' quadrangle, Washington: U.S. Geological Survey Scientific Investigations Map 2834, scale 1:24,000.
(http://pubs.usgs.gov/sim/2004/2844).

Evarts, Russell C., 2004, Geologic map of the Saint Helens quadrangle, Clark and Cowlitz Counties, Washington: U.S. Geological Survey Scientific
Investigations Map 2834, scale 1:24,000.
(http://pubs.usgs.gov/sim/2004/2834).

Evarts, Russell C., 2004, Geologic map of the Woodland quadrangle, Clark and Cowlitz Counties, Washington: U.S. Geological Survey Scientific
Investigations Map 2827, scale 1:24,000.
(http://pubs.usgs.gov/sim/2004/2827).

Evarts, Russell C., 2002, Geologic map of the Deer Island 7.5' quadrangle, Columbia County, Oregon and Cowlitz County, Washington, U.S. Geological Survey Miscellaneous Field Studies 2392, scale 1:24,000, http://geopubs.wr.usgs.gov/map-mf/mf2392/.

Minervini, J.M., Wells, R.E., and O'Conner, J.E., 2003, Maps showing inundation depths, ice-rafted erratics, and sedimentary facies of late Pleistocene Missoula floods in the Willamette Valley, Oregon, U.S. Geological Survey Open-File Report 03-408, 1 sheet, scale 1:250,000.

Tabor, R.W., Haugerud, R.A., Hildreth, W., and Brown, E.H., 2003, Geologic map of the Mount Baker 30- by 60 minute quadrangle, Washington, U.S. Geological Survey, Geologic Investigation Series, I-2660, with pamphlet, 70 p., scale 1:100,000, http://pubs.usgs.gov/imap/i2660/

Tabor, R.W., Booth, D.B. and Ford, A.B., 2002, Geologic map of the Sauk River 30 minute by 60 minute quadrangle, U. S. Geological Survey, Miscellaneous Investigations, I-2592, with pamphlet, 65p. scale 1:100,000, http://geopubs.wr.usgs.gov/i-map/i2592/

Tabor, R.W., Frizzell, V.A., Jr., Booth, D.B., and Waitt, R.B., Jr., 2000, Geologic map of the Snoqualmie Pass 60 minute by 30 minute quadrangle, Washington, U.S. Geological Survey Miscellaneous Investigations Map I-2528, with pamphlet, 75 p., scale 1:100,000.

Tolan, T.L., Beeson, M.H., 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, 40 p., 2 sheets, scale 1:24,000.

Tolan, Terry L., Beeson Marvin H., and DuRoss, Christopher B., 2000, Geologic map and database of the Salem East and Turner 7.5 minute quadrangles, Marion County, Oregon: A digital database, U.S. Geological Survey Open File Report 00-351, 13 p. 2 sheets (scale 1:24,000).

Troost, Kathy Goetz, Booth, Derek B., Wisher, Aaron P., and Shimel, Scott A., 2005, The geologic map of Seattle - a progress report: U.S. Geological Survey Open-File Report 2005-1252 [available on the World Wide Web at URL http://pubs.usgs.gov/of/2005/1252/ ].

Wells, Ray E., Snavely, Parke D., Jr., MacLeod, N.S., Kelly, Michael M., and Parker, Michael J., 1994, Geologic map of the Tillamook Highlands, Northwest Oregon Coast Range, U.S. Geological Survey Open-File Report 94-21.

Wells, Ray E., Snavely, Parke D., Jr., MacLeod, N.S., Kelly, Michael M., Parker, Michael J., Fenton, Johanna S., and Felger, Tracey J., 1995, Geologic map of the Tillamook Highlands, Northwest Oregon Coast Range, U.S. Geological Survey Open-File Report 95-670.

Wells, R.E., Jayko, A.S., Niem, A.R., Black, G., Wiley, T., Baldwin, E., Molenaar, K.M., Wheeler, K.L., DuRoss, C.B., and Givler, R.W., 2000, Geologic map and database of the Roseburg 30' x 60' Quadrangle, Douglas and Coos Counties, Oregon, Paleontological database by Bukry, D., Elder, W., McKeel, D., Marincovich, L., Niem, W., and Givler, R.W., U.S. Geological Survey Open-File Report 00-376, 55 p., 2 sheets, scale 1:100,000.