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High Water Mark - National Water Marks

Published by: Tailte Éireann
Category: Government
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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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Resource: GeoJSON

URL: https://data-osi.opendata.arcgis.com/api/download/v1/items/b45ee43280324f309cf7c0bd4fa650eb/geojson?layers=1

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Additional Information

Field Value
Data last updated 22 August 2025
Metadata last updated 9 December 2025
Created 22 August 2025
Format GeoJSON
License Creative Commons Attribution 4.0
Access urlhttps://data-osi.opendata.arcgis.com/api/download/v1/items/b45ee43280324f309cf7c0bd4fa650eb/geojson?layers=1
Download urlhttps://data-osi.opendata.arcgis.com/api/download/v1/items/b45ee43280324f309cf7c0bd4fa650eb/geojson?layers=1
Has viewsTrue
Id4e0bc6e7-c527-48f7-b7c6-f19a0424866e
Mimetypeapplication/vnd.geo+json
Package id3cb80315-0ac4-4fa6-83cb-672fd0baa89d
Position4
Stateactive
Superset Dataset
Description
High Value Dataset (HVD) Resource No
Applicable Legislation
    API response formats
      API type
      API access url