dataset · United Kingdom
Digital Geological Map Data of Great Britain - 25k (DiGMapGB-25) Superficial version 2
Data identifying landscape areas (shown as polygons) attributed with geological names and rock type descriptions. The scale of the data is 1:25 000 scale. Onshore coverage is partial and BGS has no intention to create a national coverage at this scale. Areas covered are essentially special areas of 'classic' geology and include Llandovery (central Wales), Coniston (Lake District) and Cuillan Hills (Isle of Skye). Superficial deposits are the youngest geological deposits formed during the most re
Visit source ↗Source details
Licence: ["The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in an
Evidence quality: 39.1
Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- superficial deposit polygons (Quaternary landscape areas) · BGS lexicon deposit names by mode of origin (e.g. glacial deposits, river terrace deposits, blown sand) · deposit composition attribution (e.g. peat) · rock type descriptions per polygon
- Coverage docs-verified
- Partial onshore Great Britain: special areas of 'classic' geology (e.g. Llandovery, Coniston, Cuillin Hills), not national coverage
- Resolution docs-verified
- 1:25 000 scale
- Update frequency docs-verified
- not planned
- Formats docs-verified
- ESRI shapefile · vector
- Access docs-verified
- Available under BGS data licence (copyright vested in NERC). No reproduction or transmission without prior permission of the copyright holder via the BGS IPR Manager. Free/open status not stated.
Useful for
- Use cases llm-inferred
- Superficial deposit context for ground model and foundation risk screening at 1:25k in covered areas · Identifying alluvium and river terrace deposits for flood risk assessment context · Screening for peat and blown sand presence in drainage or infiltration feasibility · Desk study geological context layer in GIS before ground investigation scoping
- Audience llm-inferred
- geotechnical engineers · hydrogeologists · GIS analysts · civils engineers · environmental consultants
Limitations
- Constraints docs-verified
- Onshore coverage is partial; only special areas of classic geology are mapped · Scale of 1:25 000 is not suitable for site-specific detail · Superficial deposits only; bedrock is not covered by this dataset · Source reference date is 2008 and no updates are planned · Supplied as ESRI shapefile vector only; no raster formats listed · Use is at the customer's own risk and NERC/BGS gives no warranty of accuracy or suitability
Evidence
- https://www.bgs.ac.uk/datasets/bgs-geology/
- https://www.data.gov.uk/dataset/a69278c5-1c5b-4ef1-af32-f48019d03509/digital-geological-map-data-of-great-britain-25k-digmapgb-25-superficial-version-2
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.