The next WI 4 route is basically on the backside of the before mentioned route. In 2008 it was a stand alone pillar that twisted up and left narrowly under the west wall of the canyon, allowing for a little stemming on rock and ice. Although you reach the same bolts as the previous route, you do not climb the same line on the upper ice. The first one is climbers right, the second, climbers left.
Marble Canyon, Kootenay National Park, BC, Canadian Rockies Ice, January, 2008