Illinois State Geological Survey
@illinois-state-geological-survey

Works by Illinois State Geological Survey

Book cover of "Inside Illinois: Mineral Resources"

Inside Illinois: Mineral Resources

Illinois State Geological Survey

Book cover of "Guide to Rocks and Minerals of Illinois"

Guide to Rocks and Minerals of Illinois

Illinois State Geological Survey

Book cover of "Guide to the Geologic Map of Illinois"

Guide to the Geologic Map of Illinois

Illinois State Geological Survey

Illinois State Geological Survey's Reading List

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