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You searched for: Publisher Indiana. Geological Survey Remove constraint Publisher: Indiana. Geological Survey Subject Geographic Subject: Illinois Remove constraint Subject: Geographic Subject: Illinois Subject Geographic Subject: Indiana, Northwest Remove constraint Subject: Geographic Subject: Indiana, Northwest

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  • Geological map of the 1¬¨‚àû x 2¬¨‚àû Chicago Quadrangle, Indiana, Illinois, and Michigan, showing bedrock and unconsolidated deposits
  • Regional geologic map. Chicago