The mountains of Arran provide an enormous amount of high quality granite trad climbing on substantial cliffs, particularly those of Beinn Tarsuinn, A' Chir, Cir Mhor, Goat Fell and Cioch na h-Oighe (which has a few climbs in the uppermost grades). Outside the mountains, Arran also has a variety of outcrops of volcanic and metamorphic rocks which are also included in this DLOG area.