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Illinois State Geological Survey

3 free books by Illinois State Geological Survey, free to read online. Chapter 1 of any book is free, no account needed.

Writes aboutPetrology -- IllinoisMines and mineral resources -- IllinoisMineralogy -- IllinoisGeology -- Illinois -- MapsGeology -- Illinois
Cover of Guide to Rocks and Minerals of Illinois

Guide to Rocks and Minerals of Illinois

Illinois State Geological Survey

Cover of Guide to the Geologic Map of Illinois

Guide to the Geologic Map of Illinois

Illinois State Geological Survey

Cover of Inside Illinois: Mineral Resources

Inside Illinois: Mineral Resources

Illinois State Geological Survey