Derwent Hall packhorse bridge
From Graces Guide
on the Peak District National Park.
Also known as Slippery Stones bridge.
This 17th century packhorse bridge over the River Derwent was originally located further downstream, but the construction of the Ladybower Dam c.1942[1] meant that it would be submerged by the new reservoir. The bridge (a scheduled ancient monument) was dismantled and the stones numbered and put into storage until it was reconstructed at the present site in 1959.
See Geograph entry.