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
Skye at Waterstein Head. Oolitic loam provides good arable land in the main valley. Lochs Bracadale and Harport and the island of Wiay lie between Duirinish and Minginish, which includes the narrower defiles of Talisker and Glen Brittle and whose beaches are formed from black basaltic sands. Strathaird is a relatively small peninsula close to the Cuillin hills with only a few crofting communities, the island of Soay lies offshore. The bedrock of Sleat in the south is Torridonian sandstone, which produces poor soils and boggy ground, although its lower elevations and relatively sheltered eastern shores enable a lush growth of