A new digital map offers an impressive rendering of the Mars landscape. Using NASA open data, Ordnance Survey, the U.K.'s national mapping agency, has surveyed part of the red planet’s surface to ...

The British mapping agency Ordnance Survey has created a map of the Martian surface using precision NASA data — and it's beautiful. PHOTOS: Tour 'The Martian' Movie Set… On Mars As an avid hiker when ...

Have you got what it takes to complete the OS Map Reading challenge? Experts have put together the test, which features questions on map symbols, scale, and how to read contours, to allow people to ...

Large-scale maps - 1:1,250, 1:2,500 and 1:10,000. Features appear larger on the map. This may be used for individual towns and cities. Small-scale - 1:25,000, 1:50,000 and 1:100,000. Features appear ...