| Title of dataset | Archaeologically Significant Built Heritage in Ireland |
| Narrative summary of dataset | This dataset shows locations of monuments within 2km of the Irish coastline as recorded in the Archaeological Survey of Ireland (ASI) dataset. The ASI has focused on recording monuments dating from before AD 1700, along with more recent sites selected according to their interest or merit. |
| Summary of processing methodology | Please note that the centre point of each record is not indicative of the geographic extent of the monument. The existing point centroids 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. The accuracy of the derived ITM co-ordinates is limited to the OS 6-inch scale and errors may ensue should the user apply the co-ordinates to larger scale maps. Records that do not refer to 'monuments' are designated 'Redundant record' and are retained in the archive as they may relate to features that were once considered to be monuments but which on investigation proved otherwise. Redundant records may also refer to duplicate records or errors in the data structure of the Archaeological Survey of Ireland. |
| Start date | 2008-03-08 |
| End date | 2019-11-20 |