River Dun, Berkshire

The northern River Dun (one of two short rivers of that name rising in Wiltshire, England) flows into Berkshire to join the River Kennet.

The River Dun rises near Great Bedwyn, Wiltshire and flows north-east into Berkshire as a tributary of the River Kennet at Hungerford, ultimately draining to the North Sea via the Thames.

The valley of the Dun has been used as an important transport route through the high chalklands between the London Basin to the east and the Vale of Pewsey to the west. It is the route by which the Kennet and Avon Canal (linking London and Bristol) enters the Thames basin from the Vale of Pewsey, crossing the watershed with the assistance of the Bruce Tunnel and the Crofton Pumping Station. It is also followed by the later main line railway from London to the south-west.