 The south-western border of Harrison Stickle is formed by the deep ravine of Dungeon Ghyll, which cuts through the parapet of the Langdale Pikes and into the lower hinterland of Harrison Combe.Across the Ghyll westwards are Thorn Crag, Loft Crag and finally Pike of Stickle.Below the steep eastern face of Harrison Stickle lie Stickle Tarn and its ghyll, thus ensuring that all drainage from the fell is to Great Langdale.