Sean Isaac is one of the world's preminent mixed climbers, spending his days climbing both rock and ice in the steep Canadian Rockies. He is the author of the book Mixed Climbs in the Canadian Rockies, published by Rocky Mountain Books, and has had numerous "How-to" articles published in a variety of magazines on mixed climbing. These have appeared in Climbing, Rock and Ice, and Gripped. In addition, he has starred in two videos about mixed climbing, Beyond Gravity and Unleashed.
