Are YOU the ultimate map-reader? Do you know your trig points from your National Trails? Can you calculate using contours? & can you fathom exactly how far the footpath is from the free house? Track down hidden treasures, decipher geographical details & discover amazing facts as you work through this unique puzzle book based on 40 of the Ordnance Survey`s best British maps. Explore the first ever OS map made in 1801, unearth the history of curious place names, encounter abandoned Medieval villages & search the site of the first tarmac road in the world. With hundreds of puzzles ranging from easy to mind-boggling, this mix of navigational tests, word games, code-crackers, anagrams & mathematical conundrums will put your friends & family through their paces on the path to becoming the ultimate map-master!