Date: 2015-02-10 09:02:19United States Coal mining Bureau of Land Management Conservation in the United States United States Department of the Interior Powder River Basin Coal Surface mining Black Thunder Coal Mine Economic geology Wyoming Environment of the United States | | The BLM’s multiple-use mission is to sustain the health and productivity of the public lands for the use and enjoyment of present and future generations. The Bureau accomplishes this by managing such activities as outAdd to Reading ListSource URL: www.blm.govDownload Document from Source Website File Size: 2,95 MBShare Document on Facebook
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