Oxlow Cavern
The 54th longest cave in the world
2.1km · Length
Oxlow Cavern is a part-natural and part-mined cavern near Castleton in Derbyshire, England. It is situated on the south side of the road running from the A623 at Sparrowpit to the Winnats Pass, west of Castleton, and is almost opposite Giant's Hole on the other side of the road. A few yards from Oxlow Cavern is the connecting Maskill Mine.
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).