Urris Hills mountain info maps weather Urris Hills is the 8171st highest peak in the British Isles and the 785th tallest in Ireland Also known as Cnoic Iorrais Elevation 417.0 m (1368 ft) Prominence 170.0 m (558 ft) Category Marilyn Tump (400-499m) Hill / mountain range Inishowen Nearest town OS map sheets OSi50: 002 (Donegal) OSi50: 003 (Donegal, Derry)