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#MapOfTheDay! Today the Critical Issues Program (@AGI_GeoIssues) shared Mines of Ohio, an interactive map of geothermal resources in the U.S. from the Ohio Department of Natural Resources (@ohiodnr), which you can find at http://bit.ly/2dS8Qk5. For more information on past and present mining and reclamation operations in Ohio, check out the Critical Issues Research Database.