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  • Lillian Schrock For The Gazette

CASPER, Wyo. — A Casper man accused of causing up to $1 million worth of damage at a local bentonite mine pleaded not guilty Tuesday in Natron…

  • By Laura Hancock For The Gazette

CASPER, Wyo. — The state can soon apply to obtain $242 million in federal abandoned mine reclamation money, according to a letter sent Monday …

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  • By MATTHEW BROWN Associated Press

A proposed silver and copper mine beneath northwestern Montana's Cabinet Mountains Wilderness cleared a significant hurdle Tuesday with the co…

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  • By SUSAN DUNLAP For The Gazette

WHITEHALL  — The layoffs of 135 workers Monday from Golden Sunlight Mine ends open pit gold mining in Whitehall.

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Stillwater Mining Co. lost $11.9 million, 10 cents a share, during the last quarter ending in September, and company officials Friday blamed l…

  • Mike Keefe
  • Ryan Dorgan/For The Gazette

A haul truck drives with a load of coal in January at the Black Thunder coal mine in Campbell County.

  • Ryan Dorgan/Casper Star-Tribune/

A haul truck drives with a load of coal on Jan. 9 at the Black Thunder coal mine in Campbell County.

  • By MATTHEW BROWN Associated Press

Settlement talks were held Wednesday in a mining dispute in which former Montana Gov. Brian Schweitzer and others are seeking $10 million comp…

  • By Mike Smith Montana Standard

BUTTE — At a time when local officials are trying to grow manufacturing in Butte-Silver Bow County, one of the area’s top prospects for adding…

  • Associated Press

CHEYENNE, Wyo. — Six workers at a Wyoming uranium mine inhaled the radioactive element while cleaning up a spill inside a processing building …

  • By BENJAMIN
    STORROW Casper Star-Tribune

CASPER, Wyo. — A contractor was killed Saturday evening at Peabody Energy’s North Antelope Rochelle Mine, a company spokeswoman confirmed Mond…

  • By MATTHEW BROWN Associated Press

Coal companies announced an agreement Thursday to consolidate ownership of a Montana mine in a deal aimed at boosting exports of the fuel to A…

  • Associated Press

HELENA — Two environmental groups are suing to block expansion of the Spring Creek coal mine in Montana.

  • Associated Press

HELENA — State environmental regulators have given Tintina Resources permission to drill four wells to assess the groundwater in the area of i…

  • By MIKE SMITH Montana Standard

BUTTE — An official with the Jefferson County Local Development Corp. said Thursday she is surprised about a media report saying Barrick Gold …

  • Alan Rogers/Casper Star-Tribune

A network of wellheads dot the landscape Dec. 9, 2013, at UR Energy’s Lost Creek uranium project in Sweetwater County, Wyo.

  • Associated Press

A conservation group is asking a federal judge to void a coal lease awarded to a central Montana mine by the U.S. Bureau of Land Management.

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  • RYAN DORGAN/For The Gazette

A shovel loads haulers with coal on Jan. 9, 2014, at Cloud Peak Energy’s Antelope Mine north of Douglas, Wyo. Antelope Mine is the county’s fo…

  • Associated Press

Montana's largest mining company racked up a $270 million net loss last year after writing down the value of two foreign properties and puttin…