From Lawrence Valley

Follow the top of the moraine wall above the Lawrence Glacier and from here climb a solid rock ridge to the crest. Traverse south, climbing into a gap with a steep bluff on the north side, then continue to the summit

From a shingle slope, follow the creek draining the north side of Mt Arrowsmith and climb to the upper basin. From here traverse Pt 2474 metres and reach the crest of the range slightly north of Cameron Col.

Start up the glacier where the moraine wall has been breached, then follow scree and snow to the high Twins–Couloir basin. Climb a steep wall of rock to reach the final ridge and summit.