Geological Survey Ireland produces a wide range of datasets from bedrock, quaternary, groundwater, marine, geological heritage, to geotechnical, minerals, geophysics, geochemistry and geohazards.
These are organised by themes accessible on the left panel (desktop view) or below (mobile view).
Data can be downloaded in zip files. They can be viewed in our online viewers. Metadata can be accessed along with web services.
Goldmine is a repository of scanned documents in particular old maps and reports.
All files are projected to Irish Transverse Mercator / ITM except when otherwise stated. The Marine files are in WGS84.
Data Licence Agreement
Data that is produced directly by the Geological Survey Ireland (GSI) is free for use under the conditions of
Creative Commons Attribution 4.0 International license.
Under the CC-BY Licence, users must acknowledge the source of the Information in their product or application.
Please use this specific attribution statement: "Contains Irish Public Sector Data (Geological Survey) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence".
Note to Data Users and Administrators - 17th August 2018
GSI Rest Services including WMS registered on https://secure.dcenr.gov.ie have expired.
These services are now instead registered on https://secure.dccae.gov.ie.
General Access to Data
If you wish to receive Data Release updates,
please join our