National Geologic Map Database
General Information
- Title: A tunnel runs through it -- an inside view of the Tualatin Mountains, Oregon
- Author(s): Walsh, Ken, Peterson, G.L., Beeson, M.H., Wells, R.E., Fleck, R.J., Evarts, R.C., Duvall, Alison, Blakely, R.J., and Burns, Scott
- Publishing Organization: U.S. Geological Survey
- Series and Number: Scientific Investigations Map SIM-3144
- Publication Date: 2011
- Map Scale: 1:2,000
- Cross Section: Yes
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Additional Resources
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- U.S. Geological Survey
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- Phone: (303) 202-4700 or 1-888-ASK-USGS
- Fax: (303) 202-4710
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.