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Bedrock Geology of Illinois - Geologic Units, 2004

Author:
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.
Publisher:
University of Illinois Urbana-Champaign
Collection:
Academic Institutions Geospatial Data
Place:
Illinois, United States
Subject:
Geoscientific Information
Year:
1996
Contributed by:
Illinois
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