Gartan Mountain mountain info maps weather Gartan Mountain is the 9839th highest peak in the British Isles and the 959th tallest in Ireland Also known as Loughaskerry Elevation 357.0 m (1171 ft) Prominence 208.0 m (682 ft) Category Marilyn Hill / mountain range Donegal NW Nearest town OS map sheets OSi50: 006 (Donegal, Tyrone)