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You searched for: Date Created 1961 Remove constraint Date Created: 1961 Publisher Indiana. Geological Survey Remove constraint Publisher: Indiana. Geological Survey Subject Geographic Subject: Indiana Remove constraint Subject: Geographic Subject: Indiana

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  • Geologic map of the Indianapolis 1¬¨‚àû x 2¬¨‚àû quadrangle, Indiana and Illinois, showing bedrock and unconsolidated deposits
  • Regional geologic map. Chicago