Mullach Glas mountain info maps weather Mullach Glas is the 3455th highest peak in the British Isles and the 243rd tallest in Ireland Also known as Teernakill South Elevation 622.0 m (2041 ft) Prominence 88.0 m (289 ft) Features Cairn Category Simm Hewitt Dillon Arderin Vandeleur-Lynam Hill / mountain range Maamturks Nearest town OS map sheets OSi50: 045 (Galway)