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Mount Saint Helens, OR/WA 7.5' maps

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Pacific Northwest Urban Corridor Geologic Maps

Geologic maps and databases of the Mount Saint Helens, OR/WA 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/University of Washington maps in preparation; yellow links to WA Division of Geology and Earth Resources or Oregon Dept. of Geology and Mineral Industries maps; blue areas are described within the existing 30' x 60' geologic map.

Location of Mount Saint Helens, OR/WA 100K quad.

Available geologic maps

30'x 60' geologic maps

Phillips, W.M., 1987, Geologic map of the Mount St. Helens quadrangle, Washington and Oregon: Washington Division of Geology and Earth Resources Open-File Report 87-4, 59 p., 1 plate, scale 1:100,000.

7.5' geologic maps

Evarts, R.C., Toutle, Toutle Mountain, Hemlock Pass, Wolf Point 1:24000 scale maps, in preparation

Evarts, R.C., 2001, Geologic map of the Silver Lake quadrangle, Cowlitz County, Washington: U.S. Geological Survey Miscellaneous Field Studies MF-2371, scale 1:24,000, with 37-p. pamphlet. http://geopubs.wr.usgs.gov/map-mf/mf2371/

Evarts, R.C. and Ashley, R.P., 1993, Geologic map of the Cowlitz Falls quadrangle, Lewis and Skamania Counties, Washington: U.S. Geological Survey, Geologic Quadrangle Map GQ-1682, scale 1:24000.

Evarts, R.C. and Ashley, R.P., 1993, Geologic map of the Spirit Lake East quadrangle, Skamania County, Washington: U.S. Geological Survey, Geologic Quadrangle Map GQ-1679, scale 1:24000.

Evarts, R.C. and Ashley, R.P., 1993, Geologic map of the Spirit Lake West quadrangle, Skamania and Cowlitz Counties, Washington: U.S. Geological Survey, Geologic Quadrangle Map GQ-1681, scale 1:24000.

Evarts, R.C. and Ashley, R.P., 1993, Geologic map of the Vanson Peak quadrangle, Lewis, Cowlitz, and Skamania Counties, Washington: U.S. Geological Survey, Geologic Quadrangle Map GQ-1680, scale 1:24000.

Evarts, R.C. and Ashley, R.P., 1992, Preliminary geologic map of the Elk Mountain quadrangle, Cowlitz County, Washington: U.S. Geological Survey, Open-File Report OF-92-362, scale 1:24000.

Evarts, R.C. and Ashley, R.P., 1991, Preliminary geologic map of the Lakeview Peak quadrangle, Cowlitz County, Washington: U.S. Geological Survey, Open-File Report OF-91-289, scale 1:24000.

Evarts, R.C. and Ashley, R.P., 1990, Preliminary geologic map of the Cougar quadrangle, Cowlitz and Clark Counties, Washington: U.S. Geological Survey, Open-File Report OF-90-631, scale 1:24000.

Evarts, R.C. and Ashley, R.P., 1990, Preliminary geologic map of the Goat Mountain quadrangle, Cowlitz County, Washington: U.S. Geological Survey, Open-File Report OF-90-632, scale 1:24000.

Livingston, V.E., Jr., 1966, Geology and mineral resources of the Kelso-Cathlamet area, Cowlitz and Wahkiakum Counties, Washington [Figure 22]: Washington Division of Mines and Geology, Bulletin 54, scale 1:24000.