Cuillin range. Cracks and fissures in the rock provided pathways for later magma intrusions, leading to dykes of basalt which are commonly seen across Skye. The Red Cuillin also have volcanic origins, being formed from a later intrusion of acidic, granitic rock. This granite was more uniformly eroded by wind and water than the gabbro and basalt, causing the red hills to have smoother outlines. The Cuillin provide classic examples of glacial topography and were the subject of an early published account by James Forbes in 1846 (who had become a fellow of the Royal Society of Edinburgh aged only nineteen).
Moffat Hills you choose, was written into Scottish law by the new Scottish Parliament in 2002, prior to that it had been an unwritten right by custom. In the Southern Uplands of Scotland there are plenty of wild places in which to exercise this right, of which The Moffat Hills range is amongst the best. With this freedom of access it is theoretically possible to enter these hills anywhere one chooses; but in practice, in most cases, a car has to be parked somewhere and this immediately cuts down the options since the roads on all three sides are not at all