A fine example, the Postbridge Clapper Bridge illustration, left, can be found at Postbridge, on Dartmoor. Its slabs are over four metres 13 ft long, two metres 6 ft 6 in wide and weigh over eight tons each, making the bridge passable to a small cart. It was first recorded in 1380 and was built to facilitate the transportation of Dartmoor tin by pack horses to the stannary town of Tavistock.

圖片編號： 94405514
拍攝者： Leedawe