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OS Open Rivers

If you need a high-level view of watercourses in Great Britain, OS Open Rivers is for you – and it's completely free.

OS Open Rivers

Or contact us if you have a question that's not answered here…

OS Open Rivers

Benefits and key features

  • Understand the water network at a ‘high level’ with generalised geometry and network connectivity.
  • View a network of main rivers, identifying the main river course along its full length.
  • Pin information on the connected network for personal or business use.
  • Compare and monitor stretches of water.
  • Share information, such as flood alerts and flood risk areas.

Useful Download

Product Sheet (PDF)

Feel free to download and share with your colleagues.

    If you need larger scale detail, a 3D heighted network, average watercourse widths and more, we recommend OS MasterMap Water Network.

    Note: this is Beta data, a close match to the final version that we have made available to download for evaluation. We welcome your feedback.

    An OS OpenData product

    OS Open Rivers is FREE to download and use for commercial, educational and personal purposes.

    An OS OpenData product

    Works in your system

    It conforms to defined geospatial standards, making for easier GIS and software set-up.

    Works in your system

    Easier data sharing

    Contains official water course name for consistency when sharing data.

    Easier data sharing

    OS Open Rivers

    Technical specifications

    Key features What this product offers
    FormatGML 3.2, Esri Shape file
    Data structureVector points and lines
    AttributesWatercourse name; watercourse type; direction of water flow
    Scale1:15 000 to 1:30 000
    Update frequencyTwice a year – April and October
    SupplyOnline download or DVD
    CoverageGreat Britain

    OS Open Rivers

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