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    • Cockeysville Quadrangle: Geology, Hydrology and Mineral Resources 

      Otton, Edmond G. (Baltimore: Department of Natural Resources, Maryland Geological Survey, 1975)
      Quadrangle Atlas No. 3. Includes Sheets: Map 1. Geologic Map (GEO). Map 2. Estimated Thickness of Overburden (OT). Map 3. Geologic Factors Affecting Land Modification (LM). Map 4. Mineral Resources and Mined Land Inventory ...