From Moa Stream

From the head of Moa Stream climb to the saddle just north of Pt 2054 metres. The tussock rib on the left of the couloir sometimes provides the best route to the saddle. Cross the glacier on the south-west face of Mt Williams and head up, aiming for the col between the twin peaks of Mt Williams. Access to the col may be complicated by a schrund. From here, move slightly out on to the north-west face and climb loose rock to the summit.