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2 datasets found
  • Federal

    National Mine Map Repository Mine Locations

    Department of the Interior —

    The National Mine Map Repository (NMMR) maintains point locations for mines appearing on maps within its archive. This dataset is intended to help connect the Office...
  • Federal

    Coal Fields of the Conterminous United States

    Department of the Interior —

    "Coal Fields of the Conterminous United States" is a digital representation of James Trumbull's "Coal Fields of the United States" (sheet 1, 1960), which is an...
2 datasets found

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