North Twin standard route Grade 2-

Descend southwards from Mt Arthur to an easy tussock ridge (or else traverse steep slopes from the col between Mt Arthur and Winter Peak). Drop down the Ellis Basin side and sidle steep slopes, aiming for a group of large rocks. Continue sidling south-west over easier tussock and scree. There is a good campsite with water at about map ref. M27/825971. Traverse further around, below the ridge crest, and through karst, until east of the North Twin, then climb directly up. Alternatively, the Arthur Range can be followed from the obvious saddle at map ref. M27/820974, but this is more exposed and will entail a careful descent down a rock step on the ridge