Ordnance Survey publishes new puzzlebook

Do you know your trig points from your National Trails? Can you calculate using contours? And exactly how far the footpath is from the free house?

It’s time to find out in Ordnance Survey’s new puzzle book that contains over 200 fascinating and fiendish brainteasers!

Track down hidden treasures, decipher geographical details and discover amazing facts, as you puzzle your way through some of Ordnance Survey's historic and modern maps.

From military boundaries, power networks and industrial heritage to national parks, Olympic events and changing landscapes, this collection of 40 maps showcases the iconic work of Ordnance Survey who has been capturing the nation for more than 200 years.

Explore OS’s first map, made in 1801; unearth the history of curious place names; and encounter abandoned medieval villages. Each stunning map is accompanied by brainteasers ranging from easy to super difficult. Put all your friends and family through their paces on the path to becoming the ultimate map-master!

Established in 1791, Ordnance Survey is one of Britain’s most beloved brands. Its vast collection of geographic data has mapped the location of every fixed physical object in Great Britain from the ground upwards to within one metre accuracy. While its world-famous and much-loved paper maps remain vital for outdoor activity in Britain, OS also produces digital map data, online route planning and sharing services and mobile apps, plus many other location-based products to help you know exactly where you are.

The Ordnance Survey Puzzle book is published by Trapeze at £14.99 and is available today from the OS Shop at os.uk/shop. Your brainteaser adventure starts here.