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General Information

  • Title: Map showing thickness of overburden, District of Columbia
  • Author(s): Froelich, A.J.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Open-File Report 75-538
  • Publication Date: 1975
  • Map Scale: 1:24,000
  • Cross Section: None
  • North Latitude: 39° 0' 0" N (39.0000)
  • South Latitude: 38° 47' 30" N (38.7917)
  • East Longitude: 77° 0' 0" W (-77.0000)
  • West Longitude: 77° 5' 0" W (-77.0833)
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