From Mt Eric (via Twain Col), follow the Main Divide, initially along a straightforward broad ridge and then along a narrow ridge with a few 10–20m steep steps. The ridge is comprised of very rotten rock, but it goes.
Climbed from the west in February 1950 by W Hunt, R Johnson, M Nelson and R Newton .
From Harpers Rock, climb towards the Hooker Range between Douglas Pass and Awatea, and then traverse around the northern slopes of Awatea to reach the Awatea–Isabel col.
From the col, climb the ridge for about 150m on excellent rock. A short, exposed, rising traverse (one 45m pitch) leads to an easy ledge and the base of a short steep corner. The corner is the crux of the route. From the top of the corner, about 130m of steep scrambling leads to the summit.
Descent was via the north-east ridge (the original ascent route) to the Isabel–Eric Col, then down a short icefall back to the base of the route. The Divide ridge was appallingly loose rock over several steep towers and the first ascensionists did three short abseils to get through.
