EarthWorks Geospatial Catalog

Bedrock Geology of Illinois - Geologic Units, 2004

Author(s)
Description
This feature class shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the Geologic Map of Illinois (1967) by Willman and others, published by the Illinois State Geologic Survey.
Collection
Illinois Geospatial Data Clearinghouse
Place(s)
Illinois, United States
Subject(s)
Geoscientific Information and Geology
Year
1996
Held by
Illinois
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