The Ordnance Survey Puzzle Book

Are YOU the ultimate map-reader? Do you know trig points from National Trails? Can you calculate using contours? And can you fathom exactly how far the footpath is from the free house? Track down hidden treasures, decipher geographical details and discover amazing facts as you work through this unique puzzle book based on 40 of the Ordnance Survey's best British maps.

Paperback 240 pages.
Measurements: 21 x 15cm.