Ive wanted to shoot this for a while now but never had the opportunity. This is a dam in the Peak District area of Ladybower in Derbyshire. The dam's design is unusual in having two totally enclosed bellmouth overflows (locally named 'pluholes'). These are stone and of 80 feet (24 m) diameter with outlets of 15 feet (4.6 m) diameter. Each discharges via its own valve house at the base of the dam. The overflows originally had walkways around them but they were dismantled many years ago. The bell mouths are often completely out of the water and are only rarely submerged, often after heavy rainfall or flooding as you can see in this shot. The symmetry in the sky and the plughole made this shot for me, almost as if the plughole was sucking the clouds straight from the sky.