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OSNI Open Data 50k Grid

This shows the location of each of our 50K tiles. The 50K Grid is published here for Open Data and can be used as a reference system for the download of the 50m DTM.

OSNI Open Data 10k Grid

National Grid Reference System for Northern Ireland composed of 292 sheets and provides the naming convention for the 1:10 000 scale mapping. The 10k Grid is published here for Open Data and can be...