Scottish Highlands in the Torridon Hills such as Liathach and Beinn Eighe in Wester Ross. These foundations are interspersed with many igneous intrusions of a more recent age, the remnants of which have formed mountain massifs such as the Cairngorms and the Cuillin of Skye. A significant exception to the above are the fossil-bearing beds of Old Red Sandstone found principally along the Moray Firth coast and partially down the Highland Boundary Fault. The Jurassic beds found in isolated locations on Skye and Applecross reflect the complex underlying geology. They are the original source of much North Sea oil. The Great Glen
A830 road a modern replacement as part of a £23.4m upgrade. The bypassed section has been handed to the local authority for maintenance and designated the B8008. On 25 May 2008 the road was featured in the BBC TV programme "Countryfile". There is a traditional Scottish song about the road, called "The Road to the Isles". The lyrics mention locations the road passes, including (in order): the Cuillin Hills, Tummel, Loch Rannoch, Lochaber, Shiel, Ailort, Morar, the Skerries and the Lews. A satirical song about the road, "The 8-3-0," was written by Ian McCalman (of the Scottish folk group The McCalmans) and