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General Information

  • Title: Bedrock topography of east-central Iowa
  • Author(s): Hansen, R.E.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Miscellaneous Geologic Investigations Map I-717
  • Publication Date: 1972
  • Map Scale: 1:125,000
  • Cross Section: None
  • North Latitude: 42° 17' 50" N (42.2972)
  • South Latitude: 41° 20' 8" N (41.3356)
  • East Longitude: 90° 6' 22" W (-90.1060)
  • West Longitude: 92° 46' 30" W (-92.7750)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.