National Monuments Service - Holy Wells

Category: Environment
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This dataset displays locational information for all 3,025 Holy Wells in the Republic of Ireland that has been recorded by the National Monuments Service. The dataset contains information on certain holy wells the precise location of which has not been identified and as a result have been assigned the National Grid Reference of 0/0.

It is hoped with the publication of this dataset that some of these ‘lost holy wells’ may be located by public information which can be sent by email to

The dataset provides the Sites and Monuments Record (SMR) Number for each holy well along with a link to a more comprehensive online entry available on the National Monuments Service, Historic Environment Viewer, accessible at

This information is correct at the time of publication. It may be amended or altered by the addition or removal of Holy Wells based on information submitted to the National Monuments Service. This dataset is based on information exported from the national database on the 20/04/2023.

Data Resources (4)

available as CSV
available as KML
available as zip
available as rest

Data Resource Preview - KMZ download of NMS - Holy Wells

Theme Environment
Date released 2023-04-20
Date updated 2023-11-17
Dataset conforms to these standards The INSPIRE Directive or INSPIRE lays down a general framework for a Spatial Data Infrastructure (SDI) for the purposes of European Community environmental policies and policies or activities which may have an impact on the environment.
Rights notes ['', 'Copyright Government of Ireland. This dataset was created by National Monuments Service, Department of Housing, Local Government and Heritage. This copyright material is licensed for re-use under the Creative Commons Attribution 4.0 International licence.', 'otherRestrictions']
Update frequency Other
Language English
Geographic coverage in GeoJSON format {"type":"Polygon","coordinates":[[[-15.407793491597, 48.635165460291],[-15.407793491597, 57.687899835291], [-5.0806450540971, 57.687899835291], [-5.0806450540971, 48.635165460291], [-15.407793491597, 48.635165460291]]]}
Spatial Reference Systems (SRS) Irish Transverse Mercator (ITM, EPSG:2157)
Vertical Extent {"verticalDomainName": "EPSG Projection 5731 - Malin Head height", "minVerticalExtent": "0", "maxVerticalExtent": "0"}
Provenance information It is important to note that this mapping uses the Irish Transverse Mercator (ITM) co-ordinate system. In order to facilitate users during the transition from Irish Grid (IG) to ITM, downloads will include both sets of co-ordinates. The existing point centroids for the records were digitised relative to the OSI 6-inch mapping and the move from this older IG-referenced series to the larger-scale ITM mapping will necessitate revisions.