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dataset · Great Britain
Government / regulator
OS Terrain 50
Ordnance Survey national 50 metre digital terrain model and contours for terrain screening, catchment context and civil engineering feasibility in Great Britain.
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What's in it
- Data offered docs-verified
- 50 m digital terrain model · 10 m contours
- Coverage docs-verified
- Great Britain
- Resolution
- 50 m grid; 10 m contours
- Update frequency docs-verified
- Annual
- Formats docs-verified
- ASCII grid · GML · Shapefile
- Access docs-verified
- OpenData terrain downloads under the Open Government Licence.
Useful for
- Use cases docs-verified
- Catchment terrain context · Civil engineering feasibility and elevation screening
- Audience docs-verified
- flood consultants · civils engineers · GIS analysts
Limitations
- Constraints docs-verified
- 50 m grid is unsuitable for detailed hydraulic modelling or site design; use surveyed or LiDAR terrain.
- Licence
- OGL-3.0
- Authentication
- none
- GitHub stars
- Unknown
- Last commit
- Unknown
- Last successful page check
- 16/10/2026
- Page health
- healthy
- Package
- Not recorded
- Verification
- Editorially verified
Provenance & evidence
Repo-side curation; publisher URLs verified with curl. Cadence describes the publisher release cycle, not a fabricated observation date.
Metadata observed 16/10/2026 · curated supplemental UK data