Surrey Three Peaks Map, OS Explorer Map 146 Dorking for Box Hill, Leith Hill, Holmbury Hill Active (waterproof) version:Yes Patented red/black orienting lines inside

Patented red/black orienting lines inside the compass housing

covering the complete Yorkshire Three Peaks Challenge route

Built-in magnifier

Ingleborough and Pen-y-ghent

Durable hot-stamping of scales/graduations

Surrey Three Peaks Map, OS Explorer Map 146 Dorking for Box Hill, Leith Hill, Holmbury Hill Active (waterproof) version:Yes Patented red/black orienting lines insideThe OS Explorer 146 map includes a large area of the Surrey Hills, including Box Hill, Leith Hill and Holmbury Hill. Trails and paths include the Greensand Way, Mole Gap Trail, North Downs Way, and the Thames Down Link. The OS 146 includes all of the Surrey Three Peaks Challenge route.