The summit of Mt. Rolliston (2275m) towers over the headwaters of the Crow River when looking north from Avalanche Peak. From other sides this mountain shows itself as a fine spire. If you keep quiet on the top of Avalanche Peak then you may hear the thunder as chunks drop off the ice cliffs of Crow Glacier. Crow River and its hut can be visited from here by walking north for 1.5 kilometres to the third depression on the ridge. There a stake and cairn mark a scree-run all the way to the valley floor.