Map sheet number OL 39 in the OS Explorer series covers the northern area of Loch Lomond, the towns of Tyndrum, Ardlui, Crianlarich and Arrochar. Highlights of the area include: Loch Lomond, Ben Lomond, Cruinn a Bheinn, Ben Donich, Ben Glas, Bheinn Chas, Meall Mor, Loch Katrine and Loch Long. This map replaces the previous OS Explorer map 364 for this area.