A Bozeman man who has struggled to gain permits to mine more than 1,000 acres in the Little Rocky Mountains of north-central ...

Conventional helium production comes with enormous carbon emissions, so scientists are looking for alternatives in places ...

Wood timbers caught fire inside the mine vein known as the 11-foot vein of the Mount Lookout Colliery owned by the Temple Anthracite Coal Co in Wyoming on May 27, 1926. Sixty three miners were deep in ...