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 LPS Open Government Data Licence.