The Brent Reservoir
The Brent Reservoir (popularly called the Welsh Harp) is a reservoir which straddles the boundary between the London Boroughs of Brent and Barnet and takes its informal name from the Welsh Harp, a pub first recorded in 1751 that stood near the site beside the Edgware Road that runs north-west out of London. The reservoir is fed by the Silk Stream and the River Brent and its outflow is the River Brent. It is said to contain enough water to fill 3 million baths, and in 1991 was believed to contain 10,000 lb (4,500 kg) of fish.