National mapping agency
[9] During the next thirty years, roughly a third of England and Wales was mapped (see Principal Triangulation of Great Britain), as other military matters took precedence.
The Office of Spatial Data Management provides an online free map service MapConnect.
It is reported that these maps are accurate and attractively printed in seven colors, and that successive editions show progressive improvement in accuracy.
[19] The Geographic Institute Agustín Codazzi is the government entity responsible for producing and distributing topographic maps of Colombia in 1:500,000 and 1:100,000 scales.
These and several other Geographic information services can be accessed using the Instituto Geográfico Agustin Codazzi website[20] in Spanish.
[25][better source needed] Topographic maps for general use are available at 1:50,000 and 1:100,000 from the Hellenic Military Geographical Service (HMGS).
Some private firms sell topographic maps of national parks based on HMGS topography.
The Department of Lands is the government agency responsible for surveying and publishing topographic maps of Hong Kong.
Topographic sheets at 1:25,000 scale covering 7.5 minutes latitude and longitude map the densely populatedTerai and Middle Mountain regions.
The first update phase completed 208 sheets [36] The Land Registry Kadaster (formerly Topografische Dienst) collects, processes and provides topographical information of the entire Dutch territory.
From various reorganizations arose in 1932 the Topografische Dienst as national mapping agency of the Netherlands, since January 2004 housed within the Land Registry Kadaster.
Land Information New Zealand is the government agency responsible for providing up-to-date topographic mapping.
The responsibility for topographic mapping and aerial photography lies with the Surveyor General of Pakistan [SGP].
Innes-Wilson, a Royal Engineers officer who joined the Survey of India which mapped the subcontinent, was the first Surveyor General of Pakistan.
Organisationally, the SOP is overseen by the Surveyor General (SG) who is a direct military appointee and a senior uniformed officer.
The National Geographic Institute is in charge of the elaboration of the official maps of the country and to support activities related to its development and defense.
Until recently, the two major government mapping authorities in Romania have been the Military Topographic Department (Directia Topografica Militara (DTM)), and the Institute for Geodesy, Photogrammetry, Cartography and Land Management (Institutul de Geodezie, Fotogrammetrie, Cartografie, si Organizarea Teritoriului (IGFCOT)).
[43] When Germany invaded in 1941, detailed maps from the USSR's western borders to the Volga River became an urgent task, accomplished in less than one year.
After the war years the entire Soviet Union was mapped at scales down to 1:25,000—even 1:10,000 for the agriculturally productive fraction.
The rest of the world except Antarctica is believed to have been mapped at scales down to 1:200,000, with regions of special interest down to 1:50,000 and many urban areas to 1:10,000.
[48][49][better source needed] These advantages held for Soviet military maps of other countries, although there were some errors due to faulty intelligence.
Now (June 2011) civilian maps are produced by the Federal agency for geodesy and cartography (Russian: Федеральное агентство геодезии и картографии or Роскартография).
The Chief Directorate: National Geo-spatial Information (CD:NGI) produces three topographic map series, each covering the whole country, at scales 1:50 000, 1:250 000, and 1:500 000.
[57] The Ordnance Survey (OS) produces topographic map series covering Great Britain at 1:25,000 and 1:50,000 scales.
[58] The 1:25,000 scale is known as the "Explorer" series, and include an "OL" (Outdoor Leisure) sub-series for areas of special interest to hikers and walkers.
The United States Geological Survey (USGS), a scientific federal agency, produces several national series of topographic maps which vary in scale and extent, with some wide gaps in coverage, notably the complete absence of 1:50,000 scale topographic maps or their equivalent.
[62] In other areas USGS digital map revisions may omit geographic features such as ruins, mine locations, springs, wells, and even trails in an effort to protect natural resources and the public at large, or because such features are not present in any public domain database.
