Think I agree with emeritus that it really could be many things, as a suggestion though what about Hart Side?
Hart Side is a fell in the English Lake District, being an outlier of the Helvellyn range in the Eastern Fells. The Ordnance Survey maps give the name to a broad saddle dropping from White Stones on Stybarrow Dodd, but Wainwright in his Pictorial Guide to the Lakeland Fells gave the name to the lower top to the north of this depression. By his convention the entire ridge between the valleys of Deepdale and Glencoyne is known as Hart Side.