ARAPAHOE BASIN — The shouts from the chairlift drift down to ski area boss Alan Henceroth. “How is it, Al?” “Are you getting it ready?” “Where’s the good snow?” Henceroth, who started as a ski patroller 29 years ago and now runs Arapahoe Basin ski area, peels the skins off his skis, transitioning from uphill to downhill after a short hike from beyond the ski area’s soon-to-change boundary. “Still pretty good on the north-facing stuff,” he hollers to the passersby above.