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Sonraí & Mapaí

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 have expired.

These services are now instead registered on

General Access to Data


Data Downloadsee left panel (desktop view) or below (mobile view) for specific theme
Map Viewer Link to our spatial resources viewer series
Metadata Link to Irish Spatial Data Exchange (ISDE) website Link to website
​Web ServicesRest Services
Goldmine Link to our online digital archive for maps and documents

Connecting to Web Services (Bring data into your GIS software)

ArcGISArcCatalog/GIS Servers/Add ArcGIS Server or Add WMS Server/Paste in web service link-Get Layers-OK
QGISLayer/ Add Layer/Add ArcGIS MapServer Layer or Add WMS / WMTS Layer/New/Name - Paste in web service link - Select png for image encoding - OK

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