The essential map for outdoor activities in Ben Lawers and Glen Lyon. The OS Explorer Map is the Ordnance Survey\'s most detailed folding map and is recommended for anyone enjoying outdoor activities including walking, horse riding and off-road cycling. This map now comes with a digital version which you can download to your smartphone or tablet.FeaturesCentral1:25 000 scale (4 cm to 1 km \' 2.5 inches to 1 milesThis map comes with a digital version which you can download to your smartphone or tablet.