The Great Glen [1][2] is a series of glens in Scotland. It runs 100 kilometres from Inverness on the Moray Firth to Fort William at the head of Loch Linnhe.
The Great Glen follows a large geological fault known as the Great Glen Fault. It bisects the Scottish Highlands into the Grampian Mountains to the southeast and the Northwest Highlands to the northwest.
The Glen is a natural travelling route in the Highlands of Scotland. It is used by both the Caledonian Canal and the A82 road, which link the city of Inverness on the east coast with Fort William on the West.