The Northern Fells are a part of the Cumbrian Mountains in the Lake District of England. Including Skiddaw, they occupy a wide area to the north of Keswick. Smooth, sweeping slopes predominate, with a minimum of tarns or crags. Blencathra in the south-east of the group is the principal exception to this trend.

Souther Fell is a fell in the English Lake District. It stands to the south of Mungrisdale village in the Northern Fells. It is most famous for the appearance of a "spectral army", said to have been seen marching along its crest on Midsummer's Day, 1745. No such force was in the District at the time.