Avon, River

Also called  Upper Avon  or  Warwickshire Avon  river, eastern tributary of the River Severn that rises near Naseby in central England and flows generally southwestward for 96 miles (154 km) through the counties of Northamptonshire, Leicestershire, Warwickshire, and Worcestershire. The river shares the name Avon (derived from a Celtic word meaning “river”) with several other rivers in Great Britain, including the Avon