Utah coal mine keeps emitting methane a decade after it ceased operations

Price • The Centennial Mine, tucked in a scenic cleft under Utah’s Book Cliffs known as Deadman Canyon, once extracted bituminous coal from deep under the West Tavaputs Plateau, but the dangers of operating in methane-infused deposits 3,000 feet below the surface forced its owner to suspend operations.That was more than 10 years ago, but the mine has yet to be closed. Equipment remains in place at its unsealed portals and the mine continues to vent methane through several bore holes.S