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The Ordnance Survey National Grid reference system (OSGB), also known as British National Grid (BNG), [1] [2] is a system of geographic grid references, distinct from latitude and longitude, whereby any location in Great Britain can be described in terms of its distance from the origin (0, 0), which lies to the west of the Isles of Scilly.
The metric national grid reference system was launched and a 1:25000-scale series of maps was introduced. The one-inch maps continued to be produced until the 1970s, when they were superseded by the 1:50000-scale series – as proposed by William Roy more than two centuries earlier.
A typical map with grid lines. 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 ...
Given that every projection gives deformations, each country's needs are different in order to reduce these distortions. These national projections, or national Coordinate Reference Systems are officially announced by the relevant national agencies. The list below is a collection of available official national projected Coordinate Reference ...
The project is sponsored by the Ordnance Survey, and extracts from the OS Landranger 1:50,000 scale maps illustrate the grid square pages. Geograph Project Limited is a charity registered in England and Wales, [5] and the name Geograph is trademarked. [6]
The United Kingdom. This is part of the list of United Kingdom locations: ... (links to map & photo sources) OS grid reference: Y Bont-Faen (Cowbridge) The Vale Of ...
The map is divided into a grid of 500 km squares. The squares covering England are Q, R, V and W with an intersection somewhere between York and Thirsk.Ireland is covered by square I, but the Irish grid is tilted slightly to the East relative to the English grid.
The Military Grid Reference System (MGRS) [1] is the geocoordinate standard used by NATO militaries for locating points on Earth. The MGRS is derived from the Universal Transverse Mercator (UTM) grid system and the Universal Polar Stereographic (UPS) grid system, but uses a different labeling convention.