A New First Ski Descent on Canada's Deltaform Mountain

Years ago, when Guillaume “Gee” Pierrel was at Moraine Lake, he was a tourist. The glittering body of water near Banff, Alberta, is ringed by a series of towering, jagged peaks that, historically, appeared on the back of Canadian twenty-dollar bills. Like many other sightseers who’ve stopped by to soak in an unforgettable alpine view, Pierrel took a picture. He thought the peaks were protected, and you couldn’t climb them.However, those mountains, part of the Valley