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Date: 2015-05-15 04:25:21Geography Cartography Geomatics National mapping agencies Geodesy Geographic coordinate systems Geography of Ireland Irish Transverse Mercator Ordnance Survey Ireland Digital elevation model Ordnance Survey | National Height Model National Mapping Agency 10m DTM / 10m Contour National DTM / Contours with 10m grid posting, +/- 2.5m vertical accuracyAdd to Reading ListSource URL: www.osi.ieDownload Document from Source WebsiteFile Size: 326,35 KBShare Document on Facebook |