Surficial Geology of the Chicago Region: Chicago Loop Quadrangle

Chicago Loop map 1939
Description: 

Map from Bulletin 65: Geology of the Chicago Region: Part II, The Pleistocene, 24 maps, 1:24,000. (Part I not available online)

Year: 
1939
Series ID: 
Bulletin 65, Map 08
GIS download contains ArcGIS geodatabase and metadata, ArcReader map document, and published map in PDF format (GIS file contents).