Ben Nevis is the highest mountain in the British Isles. Standing at 4,414 ft above sea level, it is located at the western end of the Grampian Mountains in the Lochaber area of the Scottish Highlands, close to Fort William. https://en.wikipedia.org/wiki/Ben_Nevis Unfortunately we could not see much of as there was too much fog, We went up part way upon a gondola.
Rannoch Moor is an expanse of around 50 square miles of boggy moorland to the west of Loch Rannoch in Scotland, where it extends from and into easterly Perth and Kinross, northerly Lochaber (in Highland), and the area of Highland Scotland toward its south-west, northern Argyll and Bute. Rannoch Moor is designated a Site of Special Scientific Interest and a Special Area of Conservation.
Peat deposits pose major difficulties to builders of roads and railways. When the West Highland Line was built across Rannoch Moor, its builders had to float the tracks on a mattress of tree roots, brushwood and thousands of tons of earth and ashes. The railway rises to over 1,300 feet and takes gentle curves totalling 23 miles across the moorland. To be precise, there is a sign saying 1142ft. Above sea level.The West Highland Line (Scottish Gaelic: Rathad Iarainn nan Eilean - "Iron Road to the Isles") is a railway line linking the ports of Mallaig and Oban in the Scottish Highlands to Glasgow in Central Scotland. https://en.wikipedia.org/wiki/West_Highland_Line