Find North Cascades geologic maps

Availability of the Geologic Map of the Snoqualmie 1:100,000 scale quadrangle, Washington

An early version of the map (Frizzell, V.A., Jr., Tabor, R.W., Booth, D.B., Ort, K.M., and Waitt, R.B., Jr., 1984, Preliminary geologic map of the Snoqualmie Pass 1:100,000 quadrangle, Washington: U.S. Geological Survey Open File Report 84-693, 42 p.) can be ordered from USGS Information Services (Open-File Report Sales) BOX 25286 Denver Federal Center Denver, CO 80225 Telephone: (303) 202-4700 Fax: (303) 202-4188

A colored final version (Tabor, R.W., Frizzell, V.A.Jr., Booth, D.B., and Waitt, R.B., 2000, Geologic map of the Snoqualmie Pass 30' by 60' quadrangle, Washington: U.S. Geological Survey Miscellaneous Investigations Series Map I-2538, scale 1:100,000) can be ordered from USGS Information Services (Map and Book Sales) at the address above

Link to downloadable digital files of the map and/or text