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General Information

  • Title: Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Lake County, Ohio, to Juniata County, Pennsylvania [Revised by R.D. Crangle, Jr., 2002]
  • Author(s): Ryder, R.T.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Miscellaneous Investigations Series Map I-2200 [1 sheet]
  • Publication Date: 1992
  • Map Scale: 1:3,168,000
  • Cross Section: Yes
  • North Latitude: 41° 40' 42" N (41.6783)
  • South Latitude: 40° 10' 28" N (40.1744)
  • East Longitude: 76° 49' 37" W (-76.8269)
  • West Longitude: 81° 10' 27" W (-81.1742)
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