a valley of Scotland, Argyllshire, extending for about 10 miles in a S.E. direction from Loch Leven. The lower portion of the glen next Loch Leven is cultivated and wooded, but the signs of cultivation gradually disappear on approaching the upper portion, which presents a scene of unmingled wildness and grandeur. On both sides mountains rise almost perpendicularly to a great height, while in the huge clefts of their rocky and blackened summits wreaths of snow may be seen all the year round. In the middle of the valley is the small lake Treactan, from which issues the Cona. The well-known massacre of Glencoe occurred here in February 1692. See Britain, vol. v., p. 443-4.