A history of the ordnance survey

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Ordnance Survey (OS) is a national mapping agency in the United Kingdom which covers the island of Great Britain.[1] It is one of the world’s largest producers of maps. Since 1 April 2015 it has operated as Ordnance Survey Ltd, a government-owned company, 100% in public ownership. The Ordnance Survey Board remain accountable to the Secretary of State for Business, Energy and Industrial Strategy. It is also a member of the Public Data Group.
The agency’s name indicates its original military purpose (see ordnance and surveying): mapping Scotland in the wake of the Jacobite rebellion in 1745. There was also a more general and nationwide need in light of the potential threat of invasion during the Napoleonic Wars.
Ordnance Survey mapping is usually classified as either “large-scale” (in other words, more detailed) or “small-scale”. The Survey’s large-scale mapping comprises 1:2,500 maps for urban areas and 1:10,000 more generally. (The latter superseded the 1:10,560 ‘six inches to the mile’ scale in the 1950s) These large scale maps are typically used in professional land-use contexts and were available as sheets until the 1980s, when they were digitised. Small-scale mapping for leisure use includes the 1:25,000 “Explorer” series, the 1:50,000 “Landranger” series and the 1:250,000 road maps. These are still available in traditional sheet form.
Ordnance Survey maps remain in copyright for fifty years after their publication. Some of the Copyright Libraries hold complete or near-complete collections of pre-digital OS mapping.

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W & J Mackay limited 1980, linnen gebonden met stofomslag, 394pp, keurig exemplaar, 30x22cm