DiGMapGB-50 Mass Movement: Landslip and Subsidence Areas in Great Britain at 1:50k Scale

Mass movement version 7 identifies landscape areas across Great Britain attributed with types of mass movement, such as landslips. The data covers onshore England, Wales, Scotland, and the Isle of Man at a 1:50,000 scale and is provided by the British Geological Survey (BGS). It includes foundered strata not described in the standard rock classification scheme, but caution is advised as historical recording may be incomplete and the landscape is dynamic.

Use Cases

• Model landslide susceptibility based on mapped mass movement deposit types.
• Assess ground stability for infrastructure planning using identified landslip and subsidence areas.
• Study geological hazard distribution across Great Britain based on the polygon-attributed landscape data.

Strengths

• National coverage of Great Britain (England, Wales, Scotland, Isle of Man) at a consistent 1:50,000 scale.
• Includes both mass movement deposits and foundered strata (subsidence) as described in the BGS Rock Classification Scheme Volume 4.
• Data is available in a structured vector format (ESRI shapefile) linking geometry to attribute records.

Limitations

• The description notes BGS has not always historically recorded mass movement events, suggesting potential data gaps.
• Due to the dynamic nature of mass movement, significant changes may have occurred since the data was released.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

British Geological Survey (BGS)

Freshness

Last updated 2026-05-28 14:04:38.657410; freshness should be verified.

Geography

Onshore England, Wales, Scotland, and the Isle of Man.