National Geologic Map Database
Product Description Page
Title: Chicago folio, Riverside, Chicago, Desplaines, and Calumet quadrangles. Illinois-Indiana
Author(s): Alden, W.C.
Publishing Organization: U.S. Geological Survey
Series and Number: Geologic Atlas of the United States Folio GF-81
- Publication Date: 1902
- Map Scale: 1:62,500
- Cross Section: None
- North Latitude: 42° 0' 0" N (42.0000)
- South Latitude: 41° 30' 0" N (41.5000)
- East Longitude: 87° 30' 0" W (-87.5000)
- West Longitude: 88° 0' 0" W (-88.0000)
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.