It was dark when we reached Fort William, at the head of Loch Linnhe, though the water still ran a long way, turning to the left and forming Loch Eil.  This loch gives its name to a branch of the Camerons, to which belonged one of the most redoubtable opponents of Cromwell in the Highlands--Sir Ewan Cameron.  In consequence, the Protector built a fort at Inverloch, which in King William's reign was greatly enlarged, receiving the name of Fort William.