Bollo Brook or Bollar Brook is a subterranean river in West London which flows into the River Thames. Bollo Brook rises in Acton and to the west of Turnham Green and enters the grounds of Chiswick House. There it is joined by a stream from a lake near Sydney House to the west. The waters feed the lakes and fountains at Chiswick House, and then drain into the River Thames downstream of Barnes Bridge

See also

• List of rivers in England
• Subterranean rivers of London

References