Parallel Roads of Glen Roy

Glen Roy, in the Lochaber area of the Highlands of Scotland, is a glen noted for the geological phenomenon of three loch terraces known as the Parallel Roads of Glen Roy. The terraces formed along the shorelines of an ancient ice-dammed loch that existed during a brief spell of climatic deterioration within a much longer period of deglaciation following the last main ice age, and from a distance resemble man-made roads running along the side of the glen, which is how they got their name; much of the glen is now designated a national nature reserve.