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These points represent entries to underground mines, such as mine shafts, air shafts, drift entries, or slope entries.The AUM_Openings dataset contains updated features originally extracted from the Abandoned Underground Mines information by the Ohio Department of Natural Resources, Division of Geological Survey.Original data was provided by the Ohio Department of Natural Resources, Division of Geological Survey. Funding was awarded by The U.S. Office of Surface Mining to update the dataset from a 2016 grant titled "Ohio Underground Mine GIS". Principal Authors: Ben McCament, Chris Freidhof, Lee Sorrell. Project Staff: Kate Blyth, Eugene Hancock, Gracie Keyes, Jackie Kloepfer, Sarah Maj, Nora Sullivan, Paul Verga. |