From Loadpot Hill the ridge gradually narrows on the approach to Bonscale Pike, first crossing a marshy area and then the domed intermediate top of Swarth Fell, (1,788 ft). The ground from here onward is easy going with a covering of fell grass. Bonscale Pike stands on the north facing point as the boundaries of the ridge converge. Swarthbeck Gill on the east - which separates the fell from its twin, Arthur's Pike - falls to Ullswater through a ravine. The western boundary is formed by Fusedale Beck which also flows to the lake.