The A82 between Crianlarich and Glencoe over Rannoch Moor has an extensive history. A route through the moor was followed by Major William Caulfeild, and a later route was constructed by Telford. The current alignment was constructed because Telford's road had continual problems with the loch flooding. Telford himself had proposed a completely alternative route, running to Spean Bridge via Loch Treig and Glen Spean. His plans were never implemented, though that route eventually formed part of the West Highland Railway.