Slievekirk mountain info maps weather Slievekirk is the 9472nd highest peak in the British Isles and the 931st tallest in Ireland Also known as Sliabh Circe Elevation 370.0 m (1214 ft) Prominence 276.0 m (905 ft) Category Marilyn Hill / mountain range Sperrin Mountains Nearest town OS map sheets OSi50: 007 (Londonderry)