The Digital Geological Map of Great Britain (BGS Geology) project has made digital geological map data available for much of Great Britain. It ranges from national (small-scale) to detailed (large-scale) resolutions with the availability of the five geological themes tabulated below. Follow the links for further information or download PDF documents.
|Digital Geological Map data||Geological themes typically available|
|Datasets||Scale||Use||Artificial ground||Mass Move-ment||Super-ficial deposits||Bedrock geology||Linear features|
|BGS Geology 10k (DiGMapGB-10)||1:10 000||Detailed||Yes||Yes||Yes||Yes||Yes|
|BGS Geology 25k (DiGMapGB-25)||1:25 000||Semi-detailed||Yes||Yes||Yes||Yes||Yes|
|BGS Geology 50k (DiGMapGB-50)||1:50 000||Local||Yes||Yes||Yes||Yes||Yes|
|BGS Geology 250k (DiGMapGB-250)||1:250 000||Regional||No||No||No||Yes||Yes|
|BGS Geology 625k (DiGMapGB-625)||1:625 000||National||No||No||Yes||Yes||Yes|
|Digital Geological Map data||Data formats||Open source standards|
|BGS Geology 625k (DiGMapGB-625)||Bedrock||11.3 MB||8 MB||View service||Download||Download||Download|
|BGS Geology 625k (DiGMapGB-625)||Superficial||4.6 MB||8.4 MB||View service||Download||Download|
These data are available for free, including commercial, research and public use. Where use is made of these BGS Geology 625k data you must acknowledge the material.
|BGS Geology 10k (DiGMapGB-10)||103 KB||153 KB|
|BGS Geology 50k (DiGMapGB-50)||26 KB|
|BGS Geology 250k (DiGMapGB-250)||421 KB||3.98 KB|
These samples are provided for evaluation purposes so the user can assess their content and suitability for intended uses.
Most BGS Geology data (apart from BGS Geology 625k which is free) may then be obtained for use under licence, subject to certain standard terms and conditions. In general, a licence fee will be payable based on the scale of data, the number of users, and the duration of the licence; see BGS Copyright team and How much will I pay?
The 1:625 000 scale BGS Geology dataset covering Great Britain and Northern Ireland is available for free download. Separate bedrock geology and superficial deposits themes, in ESRI® and MapInfo® vector formats, are compressed into zip files that can be downloaded and their contents unzipped to the user’s own machine.
Note: The new (Version.5) Bedrock geology does not necessarily fit well with the older (Version 1) Superficial deposits as they were prepared using different coastlines. The cartographical accuracy is approximately 1 mm which is about 625 m (usually rounded to 1 km) on the ground.
These BGS Geology 625k data are available for free, including commercial, research and public use. Where use is made of these BGS Geology 625k data you must acknowledge the material.
The BGS provides no warranty as to the quality, accuracy, 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.
BGS Geology data are available in many formats including ESRI® and MapInfo®. The 1:625 000 scale data are also available for free download in KML; the other scales are supplied under licence on request for commercial use.
GIS software is required to view these data layers. In addition to their full software products, ESRI® make the ArcExplorer data viewer and MapInfo® make the MapInfo® ProviewerTM data viewer freely available. Numerous Open Source alternatives such as Web Mapping Services (WMS) and KML files for viewing in Google Earth are also available.
Samples of data or the 1:625 000 dataset are available. Please read BGS’s software disclaimer before downloading