Calvin has extensive climbing, skiing and canyoneering experience in Utah and the Rocky Mountain West.  Big walls in Yosemite, Zion and Alaska.  Multiple expeditions in Alaska: from Denali to a first ascent on Mt. Hunters north face to unexplored regions culminating in the first ascent of 3 previously unclimbed mountains (Mt. Beckey, Pirate Peak and Mt. Medussa.) Exum guide in the Tetons and Nordic Ski Instructor.