Mount Deltaform

For the entire descent, stay with the east ridge as much as possible. When in doubt, work the ridgeline. Once down to the glaciated col between Mount Tuzo and Mount Deltaform, put on your crampons, turn south and descend the glacier down to the rock gully below. Beware of rock fall on the entire descent from the col. A huge rock platform broke threatening two in our party while just below the glacier. Once beyond the ice, move skiers right and belay off of a block into the large snow gully below the steep wall to the west. Continue down this gully which turns into large scree. Towards the end of the gully, where it turns into a waterfall, turn right and locate a pin we hammered in on the wall up and right. Rappel down into the next gully west, staying below the steep walls. This last rappel is fraught with loose rock and scree. Move over to the steep wall for cover. From this point, we descended very loose but hard ground down to the snow slopes below. Traverse, III, 5.5, Mount Deltaform and Mount Neptuak, Valley of the Ten Peaks, Moraine Lake, Banff National Park, to Marble Canyon, Kootenay National Park, August, 2010