Datasets
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The Low 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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Townland Boundaries Generalised 20m - OSi National Statutory Boundaries - 2015Ordnance Survey IrelandGovernmentTownland Boundary dataset generalised to 20m, generated from the OSi National Statutory Boundary dataset.
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Point file of Local Authorities from the OSi National Gazetteer dataset
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Townland Boundaries Generalised 50m - OSi National Statutory Boundaries - 2015Ordnance Survey IrelandGovernmentTownland Boundary dataset generalised to 50m, generated from the OSi National Statutory Boundary dataset.
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Townland Boundaries Generalised 100m - OSi National Statutory Boundaries - 2015Ordnance Survey IrelandGovernmentTownland Boundary dataset generalised to 100m, generated from the OSi National Statutory Boundary dataset.
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An area controlled by an administrative authority. National territory and all national subdivisions up to fifth order.
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Usually the sea or ocean area.
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Polyline file of Seawater Line taken from the OSi National 1:1m Map Of Ireland
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Exits and Entrances along the Border between the Republic of Ireland and Northern Ireland
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An area containing a concentration of buildings and other structures.
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Start and end points of watercourses as well as confluences (Confluence, Source, Mouth, Boundary)
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Area ≥ 0.4 km² for islands in seawater. Smaller islands in inland water area can be portrayed if considered as landmark
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Point file of Mountains taken from the OSi National 1:1Million Map Of Ireland
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Restricted to roads connected at different level crossing as i.e. at intersections of motorways or at exits of motorways.
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Boundary of an entity controlled by an administrative authority, this entity can be composed of several areas; international boundary and national subdivisions up to the lowest level (municipality level). In sea area boundaries are only portrayed if they are official (legal)...
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Access and Exit Points on all Motorway class roads
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Polygon file of the Boundaries Seawater Area taken from the OSi National 1:250k Map Of Ireland
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Area ≥ 0.4 km² for islands in seawater. Smaller islands in inland water area can be portrayed if considered as landmark
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Area < 0.4 km² Military, commercial and leisure airfields (Reference: GISCO Airport database)
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Water with area ≥ 0.4 km². Smaller lakes or ponds can be portrayed when significant to determine land occupation. Lakes being part of the water network have to be topologically connected to watercourses.
Derilinx