The 1:250 000-scale offshore geological maps in the Universal Transverse Mercator projection (UTM) series have been made available to view as a WMS.
Layers for bedrock geology (polygons and linear features, BGS Geology: marine bedrock 250K), hard substrate (DiGHardSubstrate250K) and seabed sediments (BGS Geology: marine sediments 250K) are included in the service.
Enter this address into your WMS client: https://map.bgs.ac.uk/arcgis/services/Offshore/Products_WMS/MapServer/WmsServer
Example WMS requests
Can’t use the WMS?
Try the MAREMAP viewer if you are unable to use a WMS.
This data is delivered under the terms of the Open Government Licence, subject to the following acknowledgement accompanying the reproduced BGS materials: ‘Contains British Geological Survey materials © UKRI [year]’. Contact us if you create something new and innovative that could benefit others.
The BGS provides no warranty as to the quality, accuracy or completeness of this free map data or the medium on which it is supplied. This includes any warranty as to the continued provision of material or that the material taken from this site is compatible with your computer system and/or any other data with which the material is to be used.
Please be aware that the BGS may make changes to this service. This will include, but is not limited to, the level of attribution seen for each type of geology, and changes to zoom thresholds.