Land Mapping

Land Mapping

​​​​​​​​The Land Mapping programme creates maps that depict the rocks and sub-soils of the onshore area of Ireland.  We collect new data by field surveying and borehole drilling, and combine them with existing mapping to produce map products at various scales and levels of complexity.  Our aim is a seamless, maintained, online data set of bedrock and subsoils geological mapping that is reliable, accessible and meets the requirements of all users. ​

The Land Mapping Unit activities comprise Quaternary field mapping and Bedrock data compilation, maintaining the national geotechnical database, drilling and answering public enquiries.

Explore the data and maps compiled by the Land Mapping Unit.


Research within the Land Mapping Unit mainly contributes to improving the understanding of the geology of Ireland.
We also participate in European geoscience research projects and initiatives where Irish interests are concerned.
 million years of Dingle rocks​Geological Survey Ireland will launch a new field guide book and 1:50,000 geological map of the Dingle Peninsula at an event in Dingle Skellig Hotel on Wednesday May 23rd at 7pm.22/05/2018 23:00:00 viewers unavailable Thursday 24th May 2018Due to essential maintenance, our online viewers will be unavailable Thursday 24th May 2018 from 10 am till 1pm. We apologise for any inconvenience caused.22/05/2018 23:00:00 of the Dingle Peninsula-A field guide21/05/2018 23:00:00 Economic Review of the Irish Geoscience Sector07/11/2017 00:00:00