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National Geologic Map Database

General Information

  • Title: Geologic map of Howard County and adjacent parts of Montgomery and Baltimore Counties [Maryland]
  • Author(s): Cloos, Ernst, and Broedel, C.H.
  • Publishing Organization: Maryland Geological Survey
  • Series and Number: County Geologic Map [1 sheet]
  • Publication Date: 1940
  • Map Scale: 1:62,500
  • Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.