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The original draftsman's drawings for the area around St Columb Major in Cornwall, made in 1810. Detail from 1901 Ordnance Survey map of the Imperial fortress colony of Bermuda (showing St. George's Town and St. George's Garrison), compiled from surveys carried out between 1897 and 1899 by Lieutenant Arthur Johnson Savage, Royal Engineers.
Digimap is a web mapping and online data delivery service developed by the EDINA national data centre for UK academia. It offers a range of on-line mapping and data download facilities which provide maps and spatial data from Ordnance Survey, British Geological Survey, Landmark Information Group and OceanWise Ltd Ltd., (marine mapping data and charts from the UK Hydrographic Office ...
The root unit represents the world rather than the British Isles, although more detailed decisions about map projections mean that the system is in practice limited to Europe. All coordinates are held using latitude and longitude, not the Ordnance Survey National Grid. All geographical names and some other text are held using Unicode (UTF-8).
The GB1900 project was a crowd-sourced initiative to create a gazetteer, released under an open licence, by transcribing and geolocating all the place names on the second edition County Series of six inch to one mile (i.e. 1:10,560) maps of Great Britain, published by Ordnance Survey between 1888 and 1914, and thus out of copyright.
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 Ordnance Survey Great Britain County Series maps were produced from the 1840s to the 1890s by the Ordnance Survey, with revisions published until the 1940s.The series mapped the counties of Great Britain at both a six inch and twenty-five inch scale with accompanying acreage and land use information.
The Ordnance Survey had always endeavoured to mark visible antiquities on its maps, and in 1920 had appointed its first archaeology officer: the role had subsequently developed into a department of specialists maintaining a national record of archaeological sites. In 1983 the responsibilities of the Archaeology Division were transferred to the ...
historic Ordnance Survey maps, 1832-1996; fully indexed and searchable Ulster Covenant signatories of 1912; Northern Ireland street directories, 1819–1900; pre-1840 Freeholders Registers and Poll Books; links to PRONI records on Flickr; the Conflict Archive on the Internet (CAIN); PRONI Web Archive, preserving a selection of Northern Ireland ...