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The Ordnance Survey National Grid reference system (OSGB), also known as British National Grid (BNG), is a system of geographic grid references used in Great Britain, distinct from latitude and longitude.
Sep 22, 2023 · Over the Airy ellipsoid a straight line grid, the National Grid, is placed with a new false origin to eliminate negative numbers, creating a 700 km by 1300 km grid. This false origin is located south-west of the Isles of Scilly.
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What is the Ordnance Survey National Grid?
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The OS MasterMap is the premier digital product of the Ordnance Survey. It was launched in November 2001. It is a database that records every fixed feature of Great Britain larger than a few meters in one continuous digital map. Every feature is given a unique TOID (TOpographical IDentifier), a simple identifier that includes no semantic ...
The main work of the Retriangulation was finished in 1962, creating the Ordnance Survey National Grid. This system continued to be used, and measurements refined by ground-based surveying, into the 1980s, after which satellite use took over.
The Ordnance Survey National Grid is a system used to map Great Britain. It is different from using latitude and longitude. The Ordnance Survey (OS) created the system. It is used a lot in their survey data. It is also used in maps based on those surveys.
Ordnance Survey National Grid maps, 1940s-1970s - NT Grid Square. The most detailed Ordnance Survey maps after the Second World War. View a graphic index; View a zoomable overlay of the maps on a modern satellite or map layer; View specific scales: 1:1,250 scale sheets; 1:2,500 scale - 1 x 1 km sheets; 1:2,500 scale - 1 x 2 km sheets
Here is an extract from a 1:50 000 scale map. Use the National Grid reference system to find: The Church at TL683365 The Windmill at TL726350 Mill Farm at TL701352. Customer Service Centre, Ordnance Survey, Adanac Drive, Southampton, United Kingdom, SO16 0AS. +44 (0)3454 560420 (General enquiries) +44 (0)3456 050504 (Welsh helpline) +44 (0)2380 ...
