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. Midlands Block bedrock geology map data-package releaseThis data-package consists of a compilation of geological point data and new geological mapping covering four 50k sheets (32, 33, 39 and 40) in the North Midlands region.18/01/2018 00:00:00 exhibition to mark the 200th anniversary of George Victor Du Noyer's birthTo mark the 200th anniversary of the birth of Irish geologist and artist, George Victor Du Noyer, a major exhibition of his work is running at the Crawford Art Gallery, Cork, until February 2018 along with a new story map and a book.22/11/2017 00:00:00 Economic Review of the Irish Geoscience Sector07/11/2017 00:00:00 Notes Volume 1 No.101/08/2017 23:00:00