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You searched for: geology Remove constraint geology Publisher Illinois State Geological Survey Remove constraint Publisher: Illinois State Geological Survey Subject Geoscientific Information Remove constraint Subject: Geoscientific Information Time Period 2005-2009 Remove constraint Time Period: 2005-2009
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1. Bedrock Geology: Illinois, 2005

2005. Illinois State Geological Survey. This feature dataset shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the map Bedrock G...