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National Geologic Map Database

General Information

  • Title: Geologic map and map database of western Sonoma, northernmost Marin, and southernmost Mendocino Counties, California
  • Author(s): Blake, M.C., Graymer, R.W., and Stamski, R.E.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Miscellaneous Field Studies Map MF-2402
  • Publication Date: 2002
  • Map Scale: 1:100,000
  • Cross Section: Yes
  • North Latitude: 38° 51' 10" N (38.8528)
  • South Latitude: 38° 15' 0" N (38.2500)
  • East Longitude: 122° 45' 0" W (-122.7500)
  • West Longitude: 123° 32' 37" W (-123.5436)
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