Boshaw Whams Reservoir
Holme Valley, United Kingdom
Boshaw Whams Reservoir is an upland waterbody near to the village of Hade Edge, in West Yorkshire, England. The site was originally built in 1840 to keep a supply of water for mill-owners downstream, but is now owned by Yorkshire Water but still used as a compensation reservoir for river water levels. It is used recreationally by a sailing club and for fishing. It is the only known site in Yorkshire where the invasive narrow-clawed crayfish is present.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).