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The British Geological Survey was founded in 1835 as the Ordnance Geological Survey under Henry De la Beche, and remained a branch of the Ordnance Survey until 1965. At the same time, the uneven quality of the English and Scottish maps was being improved by engravers under Benjamin Baker .
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Government reviews during the 1970s led to it being merging into the Ordnance Survey (OS) in 1984 whence it was known as the Overseas Surveys Directorate (OSD). [ 3 ] In 1991, following completion of the last significant aid-funded mapping projects, its name was changed one final time to Ordnance Survey International and its main activity ...
The OS MasterMap is the premier digital product of the Ordnance Survey. It was launched in November 2001. 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 .
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Sometimes a survey mark is made much easier to find by the presence nearby of a witness post, a stake (or a small sign) driven into the ground, and used to draw attention to (and to warn against disturbing) the mark. Care must be taken to ensure that a found disk is the one described on the data sheet, so as to avoid false reports.
Following the setting up of GeoPlace, NLPG data has been brought together with Ordnance Survey, Valuation Office Agency and Royal Mail data into the National Address Gazetteer infrastructure. The National Address Gazetteer infrastructure is the single source from which the AddressBase products from Ordnance Survey are developed.
It is produced by the Office for National Statistics (ONS) Geography group and is designed to complement the Ordnance Survey's AddressBase location intelligence databases. [ 9 ] The ONSUD is issued every six weeks using information supplied by the OS AddressBase, and is available for free download in comma-separated values (CSV) format from the ...