Chartbuster: cyclist rides 7,000 miles across every Ordnance Survey map

Mark Wedgwood traverses territory covered by every one of the 204 Landrangers and says none of his trousers fit any more

Beloved by armchair explorers and outdoors enthusiasts alike, Ordnance Survey's Landranger maps have inspired countless adventures.

But for one keen cyclist they sparked a challenge that is almost certainly a first: riding across every map in Great Britain in a journey of more than 7,000 miles (11,250km).