GUNNISON, Colo.— A Colorado judge today set a deadline for Gov. Jared Polis’ administration to draft an air quality permit for the West Elk coal mine and ordered a state agency to report progress to ...

DENVER— Conservation groups urged the Bureau of Land Management today to deny another request from Mountain Coal to lower its royalty rates for the West Elk coal mine in Colorado’s Gunnison National ...

The company produces thermal and steelmaking metallurgical coal from its Pennsylvania Mining Complex, Leer, Leer South and West Elk mines. Core earlier this week said it doesn't believe the ...