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
Sweet Grass Hills feet), East Butte (with two peaks, the taller of which at 6,958 ft), and Mount Lebanon (5807 ft). The Sweet Grass Hills are an example of the island ranges that dot the central third portion of the state of Montana. These island ranges, completely surrounded by the 'sea' of plains and not geographically (or often geologically) part of the Rocky Mountains to the west, are "biological hotspots", containing more species than the prairie below. The hills were formed in the early Paleogene period, and geologically are known as stocks - intrusive igneous rock forced up from below and solidified. Because