The Road to the Isles a daring Commando attack during Operation Roast in the Spring 1945 offensive in Italy, and also at the start of construction on Toronto's first subway line, under Yonge Street, in 1949. The lyrics mention first the hills of the Isle of Skye (whose memory is calling the traveller west); then the successive locations he will pass on the way across the Western Highlands and Inner and Outer Hebrides. The locations mentioned are (in this order): the Cuillin Hills (on the Isle of Skye), Tummel and Loch Rannoch(both in Perthshire), Lochaber (a district in the western Scottish Highlands), Shiel (east of
Geology of Skye Part of the magma chambers for the volcanoes are exposed at the surface as major intrusions of gabbro and granite. These coarse-grained igneous rocks are relatively resistant to erosion and now form the Cuillin hills. The Black Cuillin are formed of gabbro, which erodes to form the characteristically jagged outlines, although this is in large part due to the many minor intrusions, such as dykes and cone sheets that cut the gabbro. The Red Hills are formed of granite and have a more rounded topography. All pre-Quaternary rock types on the island are affected by a major swarm of dykes,