Geology of Skye with the development of an ice cap centred on the Cuillin and Red Hills. The main ice sheet that flowed westwards from the Scottish mainland was diverted around this upland area. The island is covered by large areas of glacial till, left behind when the ice melted. Geology of Skye The geology of Skye in Scotland is highly variable and the island's landscape reflects changes in the underlying nature of the rocks. A wide range of rock types are exposed on the island, sedimentary, metamorphic and igneous, ranging in age from the Archaean through to the Quaternary. The oldest rocks
Cuillin in 1994, for around £750,000. The summits of the Cuillin are bare rock, jagged in outline and with steep cliffs and deep cut corries and gullies. Twelve Black Cuillin peaks are listed as Munros, though one of them, Blaven, is part of a group of outliers separated from the main ridge by Glen Sligachan. The scrambler can access most of the individual peaks by their easiest routes. Only the Inaccessible Pinnacle is a graded rock climb (Moderate) by its simplest line but several of the other summits require scrambling skills. Navigation on the ridge is difficult due to jagged terrain