Glencoe. Glen Coe is a glen of volcanic origins, in the Highlands of Scotland. It lies in the north of the county of Argyll, close to the border with the historic province of Lochaber, within the modern council area of Highland. The scenic beauty of the glen has led to its inclusion in the Ben Nevis and Glen Coe National Scenic Area, one of 40 such areas in Scotland. A review of the national scenic areas by Scottish Natural Heritage in 2010 made reference to the soaring, dramatic splendour of Glen Coe, and the suddenness of the transition between high mountain pass and the lightly wooded strath in the lower glen. It also described the journey through the glen on the main A82 road as one of the classic Highland journeys. The main settlement is the village of Glencoe located at the foot of the glen. The glen is regarded as the home of Scottish mountaineering and is popular with hillwalkers and climbers. On the 13 February 1692, in the aftermath of the Jacobite uprising of 1689, an incident known as the Massacre of Glencoe took place in the glen. Thirty-eight men from Clan MacDonald of Glencoe were killed by government forces who were billeted with them on the grounds that they had not been prompt in pledging allegiance to the new monarchs, William II and Mary II. The Glen is named after the River Coe which runs through it. The name of the river may predate the Gaelic language as its meaning is not known although it is possible that the name stems from an individual personal name, Comhan. Another theory gives 'glen of the dogs'. The glen is U-shaped, formed by an ice age glacier, about 12.5 km long with the floor of the glen being less than 700 metres wide, narrowing sharply at the Pass of Glen Coe. The entrance to the glen from the east is below the foot of Buachaille Etive Beag just west of Lochan na Fola, from where waters run west to Loch Leven via the River Coe. The river, Ossian's dark Cona, passes over waterfalls at the Pass of Glen Coe before flowing down to the small Loch Achtriochtan. Loch Achtriochtan is Loch Trychardan in Timothy Pont's map of the area. After the loch the river turns north west, passing through Glencoe village, before flowing into the sea loch of Loch Leven at Invercoe. The area to east of Lochan na Fola is often classed as part of Glen Coe, but is in fact part of the upper reaches of Glen Etive. The south side of the glen is marked by a succession of distinct peaks: Buachaille Etive Beag at the eastern end, followed by the Three Sisters, shoulders of the Bidean nam Bian massif which are subdivided by Coire Gabhail and Coire nan Lochan. The name Coire Gabhail refers to former times when the corrie was used by members of Clan Macdonald to hide cattle and other livestock, whether their own or stolen from others. The wide flat glen is well suited for this purpose since from Glen Coe it appears to be a normal v-shaped glen approached only by a steep narrow gorge. Summits in the Bidean nam Bian massif include Stob Coire Sgreamhach, Stob Coire nan Lochan and Aonach Dubh. By contrast the north side of the glen is a stark wall of mountain, the Aonach Eagach ridge. The ridge is crossed at the eastern end by the Devil's Staircase, an old military road opposite Buachaille Etive Mer. The western end terminates with the conical Pap of Glencoe, above Glencoe village, at the point where the glen opens out to Loch Leven. Other than a few scattered farms, the only settlement in Glen Coe is the village of Glencoe, which lies at the western end of the glen close to Invercoe where the river joins Loch Leven. About 2 km to the west, on the southern shore of the loch, is the village of Ballachulish, known in the past for its slate quarries, which have been worked since 1693. Geologically speaking, Glen Coe is the remains of an ancient supervolcano. The eruption happened about 420 million years ago during the Silurian period, and the volcano has long since become extinct.