Main rivers are watercourses shown on the statutory main river maps held by the Environment Agency and the Department of Environment, Food and Rural Affairs (in England) and Natural Resources Wales and the Welsh Assembly Government (in Wales).
Supply format: Shape file / Tab / GML and other
Data availability: Available under the Open Government Licence (OGL).
Other conditions may apply and these are available via the download site.
Charge: No charge.
Sample available: Data can be downloaded immediately.
Main Site
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