East Ridge

A long route when attempted via East Horn, the first half of which is on poor rock. Alternatively, reach the ridge via the South Cameron Glacier, climbing steep snow slopes to a col of rotten rock on the East Ridge. A schrund 60–70 metres below the col may be passed on rock on the left. Climb along the narrow ridge crest to reach the big outlier to the east of Mt Arrowsmith. Climb the outlier on a wall of good rock, then scramble down and along the ridge on loose rock to a rotten, narrow col. From here a steep section of friable rock leads to solid slabs and cracks and then up three rock steps to the summit.