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"OpenStreetMap contributors"
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Information on mines with documents and data tables: There are 2,040 active mines as shown on the following map. In 2011, industry operated 1,621 mines or almost 80% of the...
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View within SubmissionGathering Resources...From the site: "This report describes new digital maps delineating areas of the United States, including Puerto Rico and the U.S. Virgin Islands, having karst or the potential...-
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View within SubmissionGathering Resources...Maps depicting gas production, shale plays, oil plays, coalbed methane fields, and other data. Maps were developed by GIS software and are in downloadable PDF and JPG format....-
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View within SubmissionGathering Resources...From the site: "This map includes short descriptions of geologic units and a cross section showing the distribution of geologic units under the earth’s surface. Among other...-
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View within SubmissionGathering Resources... -