Oughtmore mountain info maps weather Oughtmore is the 9146th highest peak in the British Isles and the 903rd tallest in Ireland Also known as Ucht Mor Elevation 382.0 m (1253 ft) Prominence 157.0 m (515 ft) Category Marilyn Hill / mountain range Sperrin Mountains Nearest town OS map sheets OSi50: 013 (The Sperrins)