In reply to fmck:
Langdale skyline from Gasigill: Rispa Pike, Uldale Head, The Claf, Hazelgill Knott, West Fell, Langdale Knott, Gaisgill.
or a bit shorter, Tebay, Blease Fell, Uldale Head, Rispa Pike, Weather Hill, Tebay.
Or just get a map and make something up. Most of the ridges have good paths, so do most of the valleys.