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General Information

  • Title: Niagaran reefs in Illinois and their relation to oil accumulation
  • Author(s): Lowenstam, H.A.
  • Publishing Organization: Illinois State Geological Survey
  • Series and Number: Report of Investigations no. 145 [36 p.]
  • Publication Date: 1949
  • Map Scale: 1:2,851,200
  • Cross Section: Yes
  • North Latitude: 42° 30' 30" N (42.5083)
  • South Latitude: 36° 58' 13" N (36.9703)
  • East Longitude: 87° 29' 47" W (-87.4964)
  • West Longitude: 91° 30' 47" W (-91.5131)
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