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General Information

  • Title: Geologic map of the Topton quadrangle, Lehigh and Berks Counties, Pennsylvania
  • Author(s): Drake, A.A., Jr.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Geologic Quadrangle Map GQ-1609
  • Publication Date: 1987
  • Map Scale: 1:24,000
  • Cross Section: Yes
  • North Latitude: 40° 37' 30" N (40.6250)
  • South Latitude: 40° 30' 0" N (40.5000)
  • East Longitude: 75° 37' 30" W (-75.6250)
  • West Longitude: 75° 45' 0" W (-75.7500)
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