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  2. Ordnance Survey Great Britain County Series - Wikipedia

    en.wikipedia.org/wiki/Ordnance_Survey_Great...

    The Ordnance Survey began producing six inch to the mile (1:10,560) maps of Great Britain in the 1840s, modelled on its first large-scale maps of Ireland from the mid-1830s. This was partly in response to the Tithe Commutation Act 1836 which led to calls for a large-scale survey of England and Wales .

  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. 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.

  5. Ordnance Survey Ireland - Wikipedia

    en.wikipedia.org/wiki/Ordnance_Survey_Ireland

    Historic Maps Collection. 18th and 19th-century historic maps of Ireland. A UCD Digital Library Collection. Maps of Dublin accompanying Thom's Official Directory, printed by the Ordnance Survey for the Dublin publisher Alexander Thom from the six-inch map sheets 18 and 22, and dating from the late 19th century. A UCD Digital Library Collection.

  6. File:Ordnance Survey 1-250000 Legend 2010.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Ordnance_Survey_1...

    Ordnance Survey OpenData 1:250 000 Scale Colour Raster. Author: Ordnance Survey: Other versions: Licensing. This file is licensed by the Ordnance Survey of the United ...

  7. National mapping agency - Wikipedia

    en.wikipedia.org/wiki/National_mapping_agency

    The Ordnance Survey maintains a mapping database from which they can print specialist maps at virtually any scale. [60] The Ordnance Survey National Grid divides Great Britain into cells 500 km, 100 km, 10 km and 1 km square on a Transverse Mercator grid aligned true north–south along the 2°W meridian. OS map products are based on this grid.

  8. Principal Triangulation of Great Britain - Wikipedia

    en.wikipedia.org/wiki/Principal_Triangulation_of...

    The first Ramsden theodolite as used by Roy. (Destroyed by bomb damage in 1941.) In the aftermath of the Jacobite rising of 1745 it was recognised that there was a need for an accurate map of the Scottish Highlands and the necessary survey was initiated in 1747 by Lieutenant-Colonel David Watson, a Deputy Quartermaster-General of the Board of Ordnance.

  9. Cartography of Dublin - Wikipedia

    en.wikipedia.org/wiki/Cartography_of_Dublin

    Bacon's Large Scale Plan of Dublin for Cyclists and Tourists Published by G.W. Bacon and Co., London Size 82 cm x 70 cm. Scale 6" : 1 mile. Publish by company of George Washington Bacon (1830–1922). Mapco.net website; 1906–9 Ordnance Survey 25-inch Second Edition Ordnance Survey: Scale 1:2500 (c.25 inches to 1 mile). GeoHive map viewer ...