Cruachan Reservoir

Cruachan Reservoir is a reservoir in Scotland. It is located to the north west of Loch Awe, in a corrie beneath Ben Cruachan. It is the upper reservoir for the Cruachan Power Station pumped-storage scheme.
It was created in the 1960s, and is contained by a dam long.
The reservoir has a catchment area of , and is capable of holding seven Gigawatt hours of energy. The water level in the reservoir can fluctuate by as much as a day due to the operation of the power station.