CRESTED BUTTE — That audible sigh of relief from up high, evoked by long-awaited snowfall last week, was loudest in this end-of-the-road ski town. A year ago, Crested Butte was buried. Several feet of snow blanketed the valley, crushing shovelers and thrilling skiers with what would become the snowiest January ever recorded at Crested Butte Mountain Resort. This season’s feast-or-famine scenario has left Crested Butte pining for even a few flakes.