| Description |
OS Open Rivers is an open-data hydrographic network dataset covering Great Britain. Derived from Ordnance Survey's large-scale topographic database, the dataset contains features with linear geometries representing freshwater rivers, tidal estuaries, and canals. The key attribute form classifies the physical nature of each object as tidalRiver, inlandRiver, lake, or canal, providing directional flow topology and persistent identifiers for national-scale hydrological mapping and routing. |