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  2. Ordnance Survey Ireland - Wikipedia

    en.wikipedia.org/wiki/Ordnance_Survey_Ireland

    Mountjoy House, the headquarters of Ordnance Survey Ireland, in the Phoenix Park, Dublin. Thomas Colby, the long-serving Director-General of the Ordnance Survey in Great Britain, was the first to suggest that the Ordnance Survey be used to map Ireland. A highly detailed survey of the whole of Ireland would be extremely useful for the British ...

  3. Ordnance Survey - Wikipedia

    en.wikipedia.org/wiki/Ordnance_Survey

    One series of historic maps, published by Cassini, is a reprint of the Ordnance Survey first series from the mid-19th century but using the OS Landranger projection at 1:50,000 and given 1 km gridlines. This means that features from over 150 years ago fit almost exactly over their modern equivalents and modern grid references can be given to ...

  4. Irish grid reference system - Wikipedia

    en.wikipedia.org/wiki/Irish_grid_reference_system

    In general, neither Ireland nor Great Britain uses latitude or longitude in describing internal geographic locations. Instead grid reference systems are used for mapping.. The national grid referencing system was devised by the Ordnance Survey, and is heavily used in their survey data, and in maps (whether published by the Ordnance Survey of Ireland, the Ordnance Survey of Northern Ireland or ...

  5. Galtymore - Wikipedia

    en.wikipedia.org/wiki/Galtymore

    The peak is named "Galtymore Mountain" on the Ordnance Survey Ireland Discovery Map. [4] [5] The townland on its southern slopes is named Knocknagalty (Cnoc na nGaibhlte). [6] Some guidebooks [3] and other publications [7] [8] suggest that the name "Galty" or "Galtees" is an anglicisation of Sléibhte na gCoillte (mountains of the forests).

  6. Map series - Wikipedia

    en.wikipedia.org/wiki/Map_series

    A map series is a group of topographic or thematic charts or maps usually having the same scale and cartographic specifications, and with each sheet appropriately identified by its publisher as belonging to the same series. [1] Map series occur when an area is to be covered by a map that, due to its scale, must be

  7. Digimap - Wikipedia

    en.wikipedia.org/wiki/Digimap

    Digimap is a web mapping and online data delivery service developed by the EDINA national data centre for UK academia. It offers a range of on-line mapping and data download facilities which provide maps and spatial data from Ordnance Survey, British Geological Survey, Landmark Information Group and OceanWise Ltd Ltd., (marine mapping data and charts from the UK Hydrographic Office ...

  8. Ordnance Survey International - Wikipedia

    en.wikipedia.org/wiki/Ordnance_Survey_International

    The Ordnance Survey International or Ordnance Survey Overseas Directorate its predecessors built an archive of air photography, map and survey records for the United Kingdom from 1946 to 1999. The Ordnance Survey International Collection (formerly the Ordnance Survey International Library) held mapping records that were acquired outside the UK.

  9. Ordnance Survey Drawings - Wikipedia

    en.wikipedia.org/wiki/Ordnance_Survey_Drawings

    The Ordnance Survey Drawings are a series of 351 of the original preliminary drawings made by the surveyors of the Ordnance Survey between the 1780s and 1840 in preparation for the publication of the one-inch-to-the-mile "Old Series" of maps of England and Wales.

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