Outerside lies on the south side of Coledale, standing at an elevation of 596 m (1,955 ft) with a prominence of around 70 m (230 ft). Its parent peak is Crag Hill and it is listed as one of Wainwright’s North Western Fells. It has a dome-shaped summit topped by a cairn. Views to the west are foreshortened by the neighbouring higher peaks of Causey Pike, Grisedale Pike and Crag Hill; however, there is a good aspect across to the Helvellyns to the east and the Skiddaw group to the north east.
One of the Coledale fells, it is often climbed as part of the Coledale round, or at least in conjunction with Barrow adjacent to it and to which it is linked by a ridge.