What are the Grampian Mountains?

The Grampian Mountains, often called simply the Grampians, are the largest and most extensive mountain range in the United Kingdom, stretching across the central Highlands of Scotland from Argyll in the west to Aberdeenshire in the east.

The range is split by the Great Glen (the fault line that runs from Fort William to Inverness) from the Northwest Highlands, and by the Highland Boundary Fault from the Scottish Lowlands to the south. Geologically, the Grampians are composed largely of metamorphic rocks (schists, gneisses, and quartzites) formed during the Caledonian orogeny around 400 to 500 million years ago. The landscape was sculpted by successive glaciations during the most recent ice ages, producing the U-shaped valleys, corries, ridges, and lochs that characterise the range today.

The Grampians contain the highest peaks in the British Isles. Ben Nevis, at 1,345 metres, is the highest mountain in the United Kingdom and stands at the western edge of the range near Fort William. Ben Macdui (1,309 metres) in the Cairngorms is the second highest, followed by Braeriach, Cairn Toul, Cairn Gorm, and other peaks of the Cairngorms plateau. The eastern part of the range includes the Cairngorms National Park, designated in 2003 and the largest national park in the United Kingdom at nearly 4,500 square kilometres. The southern Grampians include the Munros of Lochnagar and Ben Lawers.

The range encompasses a number of distinct sub-ranges and massifs, including the Cairngorms, the Monadhliath, the Lochnagar massif, the Grampian Glens, the Ben Alder range, and Rannoch Moor. Between them sit the great glens (Glen Spean, Glen Tilt, Glen Affric, Glen Etive) and some of Scotland's most famous lochs, including Loch Lomond (on the southern fringe), Loch Tay, Loch Rannoch, and Loch Ericht.

The Grampians are home to some of Scotland's most distinctive wildlife. Red deer, golden eagles, ptarmigan, mountain hares, capercaillie, and wildcats all live in the range. The Cairngorms hold one of the last remnants of the ancient Caledonian pine forest at Rothiemurchus and Abernethy. Skiing takes place at Glenshee, Cairn Gorm, the Lecht, and Glencoe.

Tourism, hill walking, mountaineering, whisky distilling, and deer stalking are the principal economic activities in the range today. The Grampians were also the inspiration for the Grampians region of Victoria in Australia, named by Sir Thomas Mitchell in 1836 after the Scottish range.