Source: wikibot/irish-grid-reference-system
= Irish grid reference system
{wiki=Irish_grid_reference_system}
The Irish Grid Reference System is a geographic coordinate system used in Ireland to pinpoint locations on maps. It is based on the National Grid, which was established in the 1960s and is derived from the British National Grid system. The Irish grid coordinates are expressed in terms of a two-letter code followed by a numerical reference, which helps to provide a precise location.