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This dataset is a digital representation of the HWM pre 2019. The latest dataset is High Water Mark - National Water Marks - Ungeneralised – 2024, see link <https://data-osi.opendata.arcgis.com/datasets/osi::high-water-mark-national-water-marks-ungeneralised-2024/about>
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The High Water Mark digital dataset is derived from relevant 6 inch and 25 inch Ordnance Maps. The alterations are in accordance with the Boundary Survey Acts Ireland, approved by the Chief Boundary Surveyor and signed off in Privy Council Orders. The dataset also includes...
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The Low Water Mark digital dataset is a historic dataset derived from relevant 6 inch and 25 inch Ordnance Maps. This dataset is provided by Tailte Éireann
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The Low Water Mark digital dataset is a historic dataset derived from relevant 6 inch and 25 inch Ordnance Maps. This dataset is provided by Tailte Éireann
Contact Information
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4th Floor, St. Stephen’s Green House,
Earlsfort Terrace, D02 PH42 Dublin 2 Ireland.
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