The Active Explorer OL 47 is a detailed weatherproof map which covers Crieff, Comrie and the surrounding areas including the beautiful town of Auchterarder. A replacement for the previous OS Explorer map 368 for this area, the OL 47 allows you to navigate your way around the eastern part of the Loch Lomond & The Trossachs National Park and even covers two Munros: Ben Vorlich and Stuc a'Chroin.