Slieve Carn mountain info maps weather Slieve Carn is the 12683rd highest peak in the British Isles and the 1176th tallest in Ireland Also known as Cuillalea Elevation 262.0 m (860 ft) Prominence 198.0 m (650 ft) Category Marilyn Hill / mountain range North Midlands Nearest town OS map sheets OSi50: 031 (Mayo)