The Ravensbourne is one of many rivers which flow into the Thames. Its catchment area is SouthEast of the Thames.
|London boroughs||London Borough of Bromley, London Borough of Lewisham, Royal Borough of Greenwich|
|Towns||Bromley, Lewisham, Deptford|
|Length||17.4 km (10.8 mi)|
|Basin size||180 km2 (69 sq mi)|
|- location||Catford Hill|
|- average||0.43 m3/s (15 cu ft/s)|
|- minimum||0.09 m3/s (3.2 cu ft/s)23 May 1992|
|- maximum||28.4 m3/s (1,000 cu ft/s)9 June 1992|
|- average||0.05 m3/s (1.8 cu ft/s)|
|- left||Ravensbourne South Branch, Ravensbourne East Branch, Spring Brook, River Pool, River Quaggy|
These river names are quite ancient. The Ravensbourne, for example, is noted in the Domesday Book.
In the centre of London the rivers are hidden under the "made" road surfaces (under Fleet Street, for example). In the suburbs the tributaries can usually be seen. The tributaries influenced the positioning of roadways and housing during the 19th century.
Of course, before the 19th century London was a much smaller city. Most of the tributaries to the Ravensbourne ran through country districts then.