DiGMapGB-625: Digital Geological Map of Great Britain at 1:625k Scale

Great Britain's onshore geology is represented in this 2008 dataset from the British Geological Survey. It provides a simplified interpretation at a 1:625,000 scale, covering England, Wales, Scotland, the Isle of Man, and Northern Ireland. Data are supplied as four vector themes: bedrock, superficial deposits, dykes, and linear features (faults).

Use Cases

• Regional geological mapping and analysis based on the bedrock and superficial deposits themes.
• Studying geological structures and tectonic history based on the linear features (faults) data.
• Identifying and analyzing igneous intrusions based on the separate dykes theme.
• Integrating simplified geology into environmental or land-use planning models based on the polygon and polyline features.

Strengths

• Covers the entire onshore area of Great Britain, including the Isle of Man and Northern Ireland.
• Provides data as four distinct, thematically organized vector layers (bedrock, superficial, dykes, faults).
• Data is delivered in standard geospatial formats (ESRI shapefiles, KML, XML).

Limitations

• The dataset's scale of 1:625,000 provides a simplified interpretation, which may lack local detail.
• Row count and file size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Likely derived from geological survey mapping and interpretation.

Time Range

2008

Freshness

Last updated 2026-07-08 13:31:38.686299; freshness should be verified.

Geography

Onshore Great Britain (England, Wales, Scotland, Isle of Man, Northern Ireland)