Loch Lomond, lying between Dumbartonshire and Stirlingshire, is the largest and most beautiful of the Lakes of Scotland. Loch Lomond varies in breadth from five miles in the south to less than one mile in the deep northern narrows and is 24 miles long. It drains to the Clyde by the Leven at the southern end. Of the 30 wooded islands, the largest is Inchmurrin, containing the ruins of Lennox Castle.
