BGS Geology 25K

BGS Geology 25k | DiGMapGB-25

Scale 1:25 000
Coverage Great Britain
Format GIS line and polygon data. (ESRI, MapInfo, others available by request)
Price 60p per km2. Subject to number of users, licence fee and data preparation fee.
Uses Local-level use

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Free access

OpenGeoscience

Supporting documents



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Semi-detailed digital geological map data based on BGS's National Grid 1:25 000 scale mapping with updated nomenclature.

Many BGS geology maps are now available digitally. The Digital Geological Map of Great Britain project (DiGMapGB) has prepared 1:625000, 1:250000, 1:50000 and 1:10000 scale datasets for England, Wales and Scotland. Work continues to upgrade these.

Recently new mapping has been captured in the small areas where 1:50000 BGS Geology is absent. This has been digitised and is available at 1:25000 scale.

The geological areas (or polygons) are labelled or attributed with a name (based on their lithostratographical, chronostratographical or lithodemic nomenclature) and their composition (rock type or lithology). This information is arranged in up to four themes as available: bedrock geology; superficial deposits; mass movement; and artificial ground. Faults and other linear features are available in a separate theme.

Geology maps are the foundation for many other types of earth science related maps and are of potential use to a wide range of customers.

This dataset uses the themes:

  • Bedrock geology
  • Superficial deposits
  • Mass movement
  • Artificial ground
  • Linear features

More information on these themes can be found here.

Answers to frequently asked quesitons can be found here.

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