Left Buttress

Ascend two pitches on the bottom wall nearer the Central Gullies, then traverse left directly below the main buttress to reach an ice ramp left of the buttress. Then either ascend directly up the buttress crest (crux 15), or up the ramp for a short distance before regaining the buttress, or up a short buttress left of the ramp before cutting back right again. Follow the buttress up progressively easier rock until the icefields. Then, depending on the state of the icecliffs, traverse left and up, or else through the cliffs. Superb.