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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.
100km squares Grid square TF. The map shows The Wash and the North Sea, as well as places within the counties of Lincolnshire, Cambridgeshire and Norfolk.. The first letter of the British National Grid is derived from a larger set of 25 squares of size 500 km by 500 km, labelled A to Z, omitting one letter (I) (refer diagram below), previously used as a military grid. [4]
The terms are sometimes used in the absolute sense of the table, but other times in a relative sense. For example, a map reader whose work refers solely to large-scale maps (as tabulated above) might refer to a map at 1:500,000 as small-scale. In the English language, the word large-scale is often used to mean "extensive".
Each map pack contains 12 cycle routes printed on individual map sheets on waterproof paper. While they are based on the 1:25,000 scale maps, the scales have been adjusted so each route fits on a single A4 sheet. Route (1:625,000; discontinued 2010) A double-sided map designed for long-distance road users, covering the whole of Great Britain.
The least detailed nineteenth century map is from 1812 and is by Robert Wilkinson, at a scale of 1:1,625,000 (British Library shelfmark Maps 177.d.2.(15.)). The intermediate scale map is Smith's New Map of the United Kingdom of Great Britain and Ireland: on which the Turnpike, and Principal Cross Roads, are carefully described.
The maps were published by the Isle of Thanet Geographical Association, with specific sheets receiving funding from local authorities such as Essex County Council. [6] Published maps were printed at a scale of 1:25,000 using the Ordnance Survey Provisional and First Series maps as a base.
In most European countries, the largest scale topographic map series is a 1:25.000 scale series. Notable exceptions are Austria (1:50,000) and Finland (1:20,000). Many non-European states limit the largest scale of their map series, usually to 1:50,000 scale, frequently due to the large size of the country covered (and hence for financial reasons).
The Ordnance Survey National Grid (United Kingdom) and other national grid systems use similar approaches. In Ordnance Survey maps, each Easting and Northing grid line is given a two-digit code, based on the British national grid reference system with an origin point just off the southwest coast of the United Kingdom. The area is divided into ...