Quaternary Geologic Map of the Chicago 4° x 6° Quadrangle, United States

Online link https://geo-nsdi.er.usgs.gov/metadata/map-i/1420/NK-16/metadata.faq.html
Description The Quaternary Geologic Map of the Chicago 4° x 6° Quadrangle was mapped as part of the Quaternary Geologic Atlas of the United States. The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials
Originators Richmond, Gerald M.; U.S. Geological Survey; Fullerton, David S.; Lineback, Jerry A.; Bleuer, Ned K.; Mickelson, David M.; Farrand, William R.; and Goldthwait, Richard P.
Publication U.S. Geological Survey Miscellaneous Investigations Series Map I-1420 (NK-16)

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