OS Open Rivers

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Dataset Description:

OS Open Rivers is a vector river network dataset available under the OS OpenData initiative. It contains over 144,000 km of watercourses, including freshwater rivers, tidal estuaries and canals.

If a more comprehensive river network dataset is required then please see the OS MasterMap Water Network Layer.


Dataset Thumbnail:


Dataset Specification:

Product Name

OS Open Rivers

Data Provider

Ordnance Survey


1:15,000 – 1:30,000


Great Britain (complete)

Data Structure

Vector (points and lines)


Esri Shapefile, Esri File GeoDatabase, MapInfo TAB, MID/MIF, Autodesk DWG, OGC KML, OGC GML, CSV (attribute data only)


Mid-scale, site-level applications


Watercourse name, flow direction, gradient, primary flow, TOID reference, EA or SEPA catchment name, ID


OS OpenData Licence

Update Frequency

6 monthly (April, October)


Dataset Resources:

Product site
Support site
User Guide & Technical Specification (pdf)