The first Winter ascent of Mount Heyburn was made by Gordon Williams, Mark Sheehan, Jacques Bordeleau, Chris Puchner and Joe Saviers on December 30, 1974. They climbed the peak from the fifth Bench Lake via the Northwest Ridge. Mark Sheehan recalls: “It was a real slog, breaking trail though waist deep powder on a 45 degree slope. Once we got … Continue reading The First Winter Ascent of Mount Heyburn