The Cuillin is a world famous mountain range on the Isle of Skye and forms part of the MacLeod Estate. Mainly composed of basalt and gabbro, the Black Cuillin derives its name from the dark colour of the gabbro. The summits of the Cuillin are bare rock, jagged in outline and with steep cliffs and deep cut corries and gullies. All twelve Munros on Skye are Black Cuillin peaks except for Blaven which belongs to a group of outliers separated from the main ridge by Glen Sligachan. The highest point of the Black Cuillin is Sgùrr Alasdair at 992m (3,255ft). At the heart of The Cuillin lies one of Britain’s most famous corrie’s, Loch Coruisk, a deep and forbidding body of water.