Coire Buidhe (Yellow Coire) stands at the northern end of the mountain, this corrie is drained by the Burn of Algie, part of the headwaters of the River Roy. Two routes down the ridges on either side of this corrie connects to the adjoining Munros. One route goes NW and links to Beinn Teallach at a col with a height of 614 metres. The other route goes NE down to the Bealach a' Bharnish (824 metres) before ascending onto the Creag Meagaidh plateau. The southern flank of the mountain descends to Glen Spean with more coniferous plantations below 400 metres while the western flanks are very steep as they fall to the glen of the Allt a' Chaorainn. All drainage from the mountain finds its way to the west coast of Scotland via the River Spean, going either south directly to Glen Spean or north and going via Glen Roy before joining the Spean at Roybridge.