A groundbreaking study reveals how strain rate influences anthracite crack characteristic Sstress under dynamic loading, ...

The expansion permits Signal Peak Energy to extract nearly 60 million tons of coal from the Bull Mountains mine north of Billings.

Burning Coal Country: 69 News investigates underground fire in Schuylkill, what could be done to extinguish it In an exclusive 4-part series, 69 News Reporter Rob Manch investigates an underground ...