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- Published by:
- British Geological Survey (BGS)
- Last updated:
- 14 January 2026
Superficial Geology (250k) This layer shows the superficial (drift) geology of Northern Ireland at 1:250,000 scale. For each rock unit there is a brief generalised description under the following...
- Published by:
- British Geological Survey (BGS)
- Last updated:
- 14 January 2026
1:50,000 maps showing the main geological superficial divisions in Northern Ireland. This series shows the superficial (drift) geology of Northern Ireland at 1:50,000 scale. For each rock unit...
- Published by:
- British Geological Survey (BGS)
- Last updated:
- 14 January 2026
This dataset is now superseded by Marine bedrock dataset (DiGRock250k) version 3. The BedRock data shows polygonal and selected linear geological information, sourced from published BGS 1:250 000...
- Published by:
- British Geological Survey (BGS)
- Last updated:
- 14 January 2026
The BGS Permeability Index dataset shows estimated rates of water movement from the ground surface to the water table. The v8 dataset incorporates the latest geology mapping (BGS Geology 50k). This...
- Published by:
- British Geological Survey (BGS)
- Last updated:
- 14 January 2026
The BGS Permeability data product shows estimated rates of water movement from the ground surface to the water table. BGS Permeability version 8 incorporates the latest geology mapping (BGS Geology...
- Published by:
- OpenDataNI
- Last updated:
- 06 April 2023
250k Bedrock Geology
A 1:250,000 map showing the main geological bedrock divisions in Northern Ireland. The data comprises the bedrock geology, which represents the outcrops (at surface) and...
- Published by:
- British Geological Survey (BGS)
- Last updated:
- 14 January 2026
1:50,000 maps showing the main geological bedrock divisions in Northern Ireland. The bedrock shown on each map comprises the bedrock geology, which represents the outcrops (at surface) and subcrops...
- Published by:
- British Geological Survey (BGS)
- Last updated:
- 14 January 2026
A 1:250,000 map showing the main geological bedrock divisions in Northern Ireland. The bedrock shown on GeoIndex map comprises the bedrock geology, which represents the outcrops (at surface) and...
- Published by:
- British Geological Survey (BGS)
- Last updated:
- 31 December 2025
This is a digital version of the paper based 1:1M scale Offshore Quaternary map, North and South sheets. Customers should be aware that, given the age of the paper based maps, the digital version...
- Published by:
- British Geological Survey (BGS)
- Last updated:
- 14 January 2026
The BGS Geology 50k datasets are a digital representation of the geological maps of Great Britain at 1:50 000 scale. The data is presented at 1:50 000 scale. Onshore coverage is provided for...