Pavey Ark is 700 m (2,297 ft) high. The main face is a little over a quarter of a mile across and drops about 400 ft. To the south-west it merges into the crags of Harrison Stickle, while the northern end peters out into the valley of Bright Beck. Stickle Tarn is wholly within the territory of the Ark, a corrie tarn which has been dammed to create additional capacity. The stone-faced barrage is low enough not to spoil the character of the pool, and the water is used for public consumption in the hotels and homes below. The tarn has a depth of around 50 ft.