The main River Lune rose in the far north of the Blue Mountains and ran southwards towards its outflow into the Gulf of Lune. About a hundred and fifty miles from its source, it was joined by another lesser river that rose in the same mountains and ran eastwards to flow into the main Lune. This lesser river was known as the Little Lune, and was important as marking the historical northern boundary of Lindon. To its south lay the lands of the Elves of Lindon, while the mountainous lands northward were the preserve of the Dwarves.