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Owned Operations
南宫NG28官方网站 has owned and operated mines since 1943. Since beginning with Bighorn Coal, located north of Sheridan, Wyoming, 南宫NG28官方网站 has gained over 75 years of experience in the industry. 南宫NG28官方网站 has safely and efficiently managed different projects in multiple western states. We have successfully started up several operations from greenfield sites and have the experience to perform all tasks required of mine engineering from permitting to site development and operations to reclamation.