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Roman Britain (Historical Map and Guide): 7

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During the 1970s, government reviewed the DOS’ purpose. Then, in 1984, the organisation was merged with Ordnance Survey and given a new title: Overseas Surveys Directorate, OS (OSD). Almost all photography of Africa, Aden, Malaya, and Borneo flown between 1946 and 1953 was taken with Fairchild® K17 cameras, and from 1951 with Williamson F49 cameras, both using the same focal length of 152 mm. These were carried in aircraft (mainly Lancasters) of RAF photographic reconnaissance squadrons. The planned scale of photography was 1:30 000, selected as a compromise that would provide specialist departments (geology, forestry, agriculture) with photography that both enabled interpretation of thematic information, and suited topographic mapping. Roman roads remained in use as trunk roads for centuries after the Romans withdrew from Britain in 410 AD. Systematic construction of paved highways did not resume in England until the 18th century.

We used to hold our own archive of maps, air photography and survey records from our work in many countries around the globe over the last half century or more. This archive - also known as the Ordnance Survey International Collection - has sat with several custodians since 2003. Here you can discover the history of the International Collection and find details on where our records are archived.

Historical maps of Great Britain

The International Collection was the result of the work of the Directorate of Colonial Surveys, the Directorate of Overseas Surveys, Ordnance Survey (Overseas Surveys Directorate) and Ordnance Survey International. The history of the International Collection The Directorate of Overseas Surveys (DOS) book collection was merged with the Ordnance Survey Library’s collection in 1987. It has since been withdrawn from the library and has relocated to other institutions under the direction of the National Archives. The Roman roads in Britain were, with Roman aqueducts, and the Roman army, [1] one of the most impressive features of the Roman Empire in Britain. In difficult cases DOS would study the evolution of the boundary over many decades, then write a critique explaining how the boundary alignment was transferred from official documents to the DOS map. One example would be the former Yemen Arab Republic-People’s Democratic Republic of Yemen boundary. Directorate of Overseas Surveys map production example set We also have an extensive wiki aimed at the collection of historical information surrounding the road network and its history.

Records of field work by the Falkland Islands Dependencies Survey and the British Antarctic Survey, formerly held by the DOS Survey Data Library, are now held by the British Antarctic Survey, Cambridge. Other agencies’ editions in series produced jointly by DOS, national mapping agencies and British Military Survey They're filed under code AD rather than by individual country. Directorate of Overseas Surveys survey data catalogue Individual trig stations and occasional bench marks are plotted, with heights, on DOS 1:125 000 and larger-scale mapping. International boundary survey data

This available online and provides an excellent overview as the OS Map has considerable detail on it. It is in our plans to provide a set of mapping data that can be used by us all using Google Maps nd Google Earth so we will keep you posted on that but for the moment here are the top 3 sources we have identified:

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