Bidein a' Ghlas Thuill

An Teallach (Scottish Gaelic for 'the forge' or 'the anvil') is a mountain group in Wester Ross, in the Northwest Highlands of Scotland. It lies west of Dundonnell Forest, north of Loch na Sealga, and south of Little Loch Broom. Its highest peaks are the Munros of Bidean a' Ghlas Thuill at 1062 m (3484 ft), and Sgùrr Fiona at 1058 m (3473 ft). The mountains are mostly made of Torridonian sandstone. Like the peaks around Torridon (for which the rock is named), An Teallach has terraced sides riven with steep gullies and a sharp rocky summit crest at Sgùrr Fiona. The steepest section, known as Corrag Bhuidhe, rises above Loch Toll an Lochain. Corrag Bhuidhe's most spectacular feature is an overhanging pinnacle known as Lord Berkeley's Seat.