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  • Title: Preliminary bedrock geologic map of the Old Lyme quadrangle, New London and Middlesex Counties, Connecticut [revised by Walsh, G.J. and others, 2009, U.S. Geological Survey Scientific Investigations Map SIM-3052]
  • Author(s): Walsh, G.J., Scott, R.B., Aleinikoff, J.N., and Armstrong, T.R.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Open-File Report OF-2006-1296
  • Publication Date: 2006
  • Map Scale: 1:24,000
  • Cross Section: Yes
  • North Latitude: 41° 22' 30" N (41.3750)
  • South Latitude: 41° 15' 0" N (41.2500)
  • East Longitude: 72° 15' 0" W (-72.2500)
  • West Longitude: 72° 22' 30" W (-72.3750)
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