Scotland is the most mountainous country in the United Kingdom. The area north and west of the Highland Boundary Fault is known as the Highlands, and contains the country's main mountain ranges. Scotland's mountain ranges, in a rough north to south direction, are: The Highlands & Islands, The Hills of the Central Lowlands, the Southern Uplands. The zone includes Britain's highest peaks, especially Ben Nevis (Beinn Nibheis), standing at 4,411 ft (1,344.5 m), with several similar peaks in the Cairngorms.