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  2. Army Map Service - Wikipedia

    en.wikipedia.org/wiki/Army_Map_Service

    The Army Map Service Special Foreign Activities are carried out by the 64th Engineer Battalion (Base Topographic). Its assigned mission was to provide AMS with required geodetic, mapping control and field classification data which are used in the production of various scale topographic maps.

  3. 655th Engineer Topographic Battalion - Wikipedia

    en.wikipedia.org/wiki/655th_Engineer_Topographic...

    The 655th Engineer Topographic Battalion (655th ENG TOPO BN) was a technical support unit formed to provide surveying, drafting, and map production activities for the US Army during World War II. With the beginning of the war in Europe, the U.S. realized that the existing European maps were inadequate for tactical purposes or use by artillery ...

  4. Hellenic Military Geographical Service - Wikipedia

    en.wikipedia.org/wiki/Hellenic_Military...

    The maps use the Hellenic Geodetic Reference System 1987 (HGRS87 or ΕΓΣΑ'87) which specifies a Transverse Mercatorial Projection mapping Greece in one zone. 1:25.000 scale - 26 maps available for regions near Athens; 1:50.000 scale - approximately 385 maps; 1:100.000 scale - around 130 maps available; 1:250.000 scale - 32 maps available

  5. Military Grid Reference System - Wikipedia

    en.wikipedia.org/wiki/Military_Grid_Reference_System

    An MGRS grid reference is a point reference system. When the term 'grid square' is used, it can refer to a square with a side length of 10 km (6 mi), 1 km, 100 m (328 ft), 10 m or 1 m, depending on the precision of the coordinates provided. (In some cases, squares adjacent to a Grid Zone Junction (GZJ) are clipped, so polygon is a better ...

  6. National Geospatial-Intelligence Agency - Wikipedia

    en.wikipedia.org/wiki/National_Geospatial...

    The National Geospatial-Intelligence Agency (NGA) is a combat support agency within the United States Department of Defense whose primary mission is collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of national security. Initially known as the National Imagery and Mapping Agency (NIMA) from 1996 to 2003, it is ...

  7. United States Geological Survey - Wikipedia

    en.wikipedia.org/wiki/United_States_Geological...

    The United States remains virtually the only developed country in the world without a standardized civilian topographic map series in the standard 1:25,000 or 1:50,000 metric scales, making coordination difficult in border regions (the U.S. military does issue 1:50,000 scale topo maps of the continental United States, though only for use by ...