OS Open Rivers

OS Open Rivers GIS data contains over 144,000 km of water bodies and watercourses map data. These include freshwater rivers, tidal estuaries and canals.

Understand how water bodies and watercourses in Great Britain join up.

OS Open Rivers provides a comprehensive datset of Great Britain's River Network, which approximately indicates the central alignment of the watercourse. Inland and tidal rivers are represented by a series of connected link and node features which are assigned with river name and flow direction.

Data and Resources

Additional Info

Field Value
Last Updated June 23, 2026, 13:30 (UTC)
Created February 11, 2019, 15:49 (UTC)