River Thames

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The River Thames rises at Thames Head (near Kemble / Cirencester map) or Seven Springs (near Cheltenham map), depending on who you talk to.

It flows through Lechlade, Oxford, Abingdon, Wallingford, Reading, Henley-on-Thames, Marlow, Maidenhead, Windsor, Eton, Staines and Weybridge, before entering the Greater London area.

Non Tidal Thames

  • Thames Head to Lechlade
  • Lechlade to Standlake
  • Standlake to Eynsham
  • Eynsham to Oxford Ring Road
  • Oxford, except centre
  • Central Oxford
  • Oxford Ring Road to Abingdon
  • Abingdon to Wallingford
  • Wallingford to Reading
  • Reading to Henley-on-Thames
  • Henley-on-Thames to Marlow
  • Marlow to Maidenhead
  • Maidenhead to Windsor
  • Windsor to Eton
  • Eton to Staines
  • Staines to Chertsey
  • Chertsey to Kingston
  • Kingston to Tidal Thames

Tidal Thames

Mapping history

OpenStreetMap began in London, and the Thames flowing through London was one of the first places where we pondered the challenge of mapping large rivers (in a way which allowed software to render it properly) discussing the details of Tag:waterway=riverbank and Proposed features/Tidal Rivers. The tidal section of the river was initially brought in by the coastline imports, and then people tracing from landsat.