The Crandall Canyon Mine, formerly Genwal Mine, was a bituminous underground coal mine in northwestern Emery County, Utah, United States. The mine made headline news when six miners were trapped by a collapse in August 2007. Ten days later, three rescue workers were killed by a subsequent collapse. The six miners were later declared dead a…The Crandall Canyon Mine, formerly Genwal Mine, was a bituminous underground coal mine in northwestern Emery County, Utah, United States. The mine made headline news when six miners were trapped by a collapse in August 2007. Ten days later, three rescue workers were killed by a subsequent collapse. The six miners were later declared dead and their bodies were never recovered.