Surficial deposits and materials in the eastern and central United States (east of 102 degrees west longitude)

Online link https://geo-nsdi.er.usgs.gov/metadata/map-i/2789/metadata.faq.html
Description The surficial geologic map of the Eastern and Central United States depicts the areal distribution of surficial geologic deposits and other materials that accumulated or formed during the past 2+ million years, the period that includes all activities of t
Originators Fullerton, David S.; Bush, Charles A.; and Pennell, Jean N.

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