Knockalough mountain info maps weather Knockalough is the 7898th highest peak in the British Isles and the 736th tallest in Ireland Also known as Cnoc an Loig Elevation 427.0 m (1401 ft) Prominence 200.0 m (656 ft) Category Marilyn Tump (400-499m) Hill / mountain range Shannon Nearest town OS map sheets OSi50: 066 (Tipperary, Limerick)