Owned Operations

Kiewit has owned and operated mines since 1943. Since beginning with Bighorn Coal, located north of Sheridan, Wyoming, Kiewit has gained over 75 years of experience in the industry. Kiewit 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.