Online Mapping
GSI offers a range of websites and services to enable you to simply view, download or connect live to our data for free:

Data Download sites

IWDDS page     DCENR Data Download page
Interactive Web Data Delivery System (IWDDS).
Offshore (INSS and INFOMAR) and onshore GSI
data can be clipped and extracted from an
area of interest.
DCCAE Spatial data page . GIS data (ESRI shapefiles)
can be downloaded in pre-zipped folders. A stylefile is
included as well as a digital licence agreement which
is to be completed by the user.


Map Viewers 
A generic "GSI Spatial Resources Viewer" was created in association with ISD developers. 
Separate bespoke project viewers are also available below.

Access to online viewer with all GSI spatial resources available The new GSI Spatial Resources Viewer(2016) displays all of GSI  datasets available to date.
This viewer replaces the old Public Data Viewer.

Each project dataset can be viewed in a separate tab or as a standalone viewer (click on the "view in full screen" option) or see the list below.

Project Viewers 

Project viewers are updated regularly when new datasets are available.

Groundwater Viewer
FAQs on using the Groundwater Viewer.
The older version of the Groundwater Mapping Site has been decommissioned as it is no longer supported - January 2016. 

All of the old viewer functionality is available in the new application which includes the print facility.

Geothermal Viewer

Quaternary Viewer (Geomorphology and Sediments)

Geological Heritage Viewer

Geotechnical Viewer

Landslides Viewer

Aggregate Potential Mapping

GeoUrban Viewer
GeoUrban Viewer

Bréifne Viewer
Bréifne Viewer

INFOMAR Viewer (Seabed mapping)

JIBS Viewer
Joint Irish Bathymetric Survey (JIBS) Viewer

EMODnet Viewer
EMODnet Viewer

Tellus Border Viewer

Minerals Open File Viewer

GIS Web Map Services (WMS)
You can now access The Geological Survey's GIS data directly through your desktop GIS application, or view our data in a variety of Open Source Viewers (e.g Gaia).

OGC compliant WMS (Web Map Service) feeds are now available via our departmental GIS server.

Consult your software's help documentation on how to add the WMS.
Download Opening a GSI WMS in ArcGIS.pdf
Download Opening a INFOMAR WMS in ArcGIS.pdf
Download Opening a INFOMAR WMS in GAIA.pdf

The full links for the WMS services are:

Full list of INFOMAR (Marine) WMS Services Click Here

ArcGIS Rest Services

You can now access The Geological Survey's GIS data directly using ArcGIS.

Open ArcCatalog. Go to GIS Servers. Add ArcGIS Server. Use GIS Services. Paste in the Server URL.