CATHERINE TSAIDENVER (AP) â¿¿ A conservation group has lost its challenge of a company's plan to look for molybdenum (ma-LIB'-de-nem) at an old mining site near Crested Butte. Riverton, Wyo.-based U.S. Energy Corp. won state approval last year of a revised plan to build a mine tunnel at Mount Emmons. The Colorado Mined Land Reclamation Board voted 4-1 Wednesday to uphold the approval and reject an appeal from the High Country Citizens' Alliance. The group's executive director Dan Morse says the High Country Citizens' Alliance still has concerns about water quality for Crested Butte. But U.S. Energy Corp. CEO Keith Larsen says mining today is different from the past, and new environmental and safety regulations will keep operations safe.