Bidean nam Bian & Coire Gabhail
Bidean nam Bian, lying to the south of Glen Coe, Highland, Scotland, is the highest point in the former county of Argyll. It is a complex mountain, with many ridges and subsidiary peaks, one of which, Stob Coire Sgreamhach, is classified as a separate Munro.
The most noticeable features of Bidean nam Bian are the famous Three Sisters of Glen Coe, three steeply-sided ridges that extend north into the Glen. Two of the sisters, Gearr Aonach (Short Ridge) and Aonach Dubh (Black Ridge) converge at Stob Coire nan Lochan, a 1,115 m (3,658 feet) subsidiary peak of Bidean nam Bian that lies about 1 km to the northeast of the actual summit. The final, most easterly sister, Beinn Fhada (Long Hill), joins the Bidean nam Bian massif at the summit of Stob Coire Sgreamhach.
Coire Gabhail (Corrie of the Bounty, or The Hollow of Capture) is a high level glen in the Bidean nam Bian mountain massif to the south of Glen Coe, Highland, Scotland. Its narrow entrance 230 metres (750 ft) up the hillside conceals the width of the glen beyond, and it is commonly known as the Hidden Valley or Lost Valley of Glencoe. Access from a bridge crossing the River Coe is by a steep path up beside a narrow wooded ravine.
Coire Gabhail runs southwestwards between the steeply-sided ridges of two of “The Three Sisters”; on its left, Beinn Fhada (Long Hill) is the eastmost sister, and the central sister Gearr Aonach (Short Ridge) on the right of the corrie forms its western side. Further to the west of Gearr Aonach, Coire nan Lochan is enclosed by Aonach Dubh (Black Ridge).
The southern end of Coire Gabhail is marked by the peak of Stob Coire Sgreamhach on the ridge which then slopes down westwards to its low point at Bealach Dearg, then continues up above cliffs to the summit of Bidean nam Bian.