OSNI Open Data Largescale Boundaries – Townlands

The OSNI Large-scale boundaries is a polygon dataset consisting of the Townland boundaries.Townlands are anancient method of land measurement found only in Ireland and can be very important in genealogical research. These small areas of land can vary in size from a few acres upwards. The data has been extracted from OSNI Largescale database and has been topologically cleansed and attributed to create a seamless dataset.This service is published for OpenData. By download or use of this dataset you agree to abide by the Open Government Data Licence.

Data and Resources

Additional Info

Field Value
Creation Date May 24, 2017, 08:30 (UTC)
Topic Category Location


Frequency of Update Not Planned
Contact Name OSNI Mapping Helpdesk
Contact Email osniopendata@dfpni.gov.uk
Additional Information
Visibility False
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