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The Ordnance Survey still maintains a set of master geodetic reference points to tie Ordnance Survey geographic datum points to modern measurement systems such as GPS. Ordnance Survey maps of Great Britain use the Ordnance Survey National Grid rather than latitude and longitude to indicate position.
The Ordnance Survey (OS) devised the national grid reference system, and it is heavily used in its survey data, and in maps based on those surveys, whether published by the Ordnance Survey or by commercial map producers. Grid references are also commonly quoted in other publications and data sources, such as guide books and government planning ...
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.
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.
His main focus at Exeter was the history of the Ordnance Survey. He produced notes for the David and Charles reprints of the first edition one-inch maps, wrote Ordnance Survey Maps: a Descriptive Manual (1975), and a substantial part of the official history of the Ordnance Survey (1978). From the 1970s Harley turned to a philosophical view of maps.
Media in category "Old Ordnance Survey map images" The following 3 files are in this category, out of 3 total. 06-english map of 1915-detail- nla.obj-234275744.jpg 1,459 × 1,641; 669 KB
This category is for articles about maps from Ordnance Survey. Pages in category "Maps from Ordnance Survey" The following 5 pages are in this category, out of 5 total.
"OS Maps", by Ordnance Survey. OpenStreetMap - covers the whole country "StreetMap", by Streetmap EU Ltd, at streetmap.co.uk - covers the whole country; United States.