Skye that requires technical climbing skills to reach the summit. These hills make demands of the hill walker that exceed any others found in Scotland and a full traverse of the Cuillin ridge may take 15–20 hours. The Red Hills (Gaelic: ) to the south are also known as the Red Cuillin. They are mainly composed of granite that has weathered into more rounded hills with many long scree slopes on their flanks. The highest point of these hills is Glamaig, one of only two Corbetts on Skye. The northern peninsula of Trotternish is underlain by basalt, which provides relatively rich
Cuillin proportion compared to other equivalent land sales. Following the death of John MacLeod in 2007 his successor, Hugh Magnus MacLeod of MacLeod, found alternative funding sources, and as of 2017 ownership of the main range remains in the MacLeod family. The "Strathaird, Torrin and Sconser Estate" lies on the eastern side of Glen Sligachan, encompassing the Red Cuillin and Bla Bheinn: it is owned by the John Muir Trust, a charity that seeks to protect and enhance wild places. Strathaird Estate was formerly owned by musician Ian Anderson, the frontman for Jethro Tull, who sold the estate to the trust