(Brian Maffly | The Salt Lake Tribune) Utah's Centennial Mine, 10 miles northeast of Price in the Book Cliffs, is one the nation's of deepest longwall coal mines. UtahAmerican Energy idled it 10 years ago, but has yet to permanently close the mine, which has emitted methane into the atmosphere. Now Utah state regulators are trying to force the mine owners to plug the wells bored through the Book Cliffs that "de-gas" the mine. But the mine wants to keep the wells open in hopes of resuming coal mining there. Nov. 27, 2018.
Brian Maffly has worked for The Tribune off and on since 1994. Maffly roams Utah, covering public land and environment.