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  2. United States National Grid - Wikipedia

    en.wikipedia.org/wiki/United_States_National_Grid

    Recent editions of these maps (those referenced to the North American datum of 1983, or NAD83) are compatible with USNG, and current editions also contain a standard USNG information box in the collar which identifies the GZD(s) (Grid Zone Designator(s) and the 100 km Grid Square ID(s) covering the area of the particular map. USNG can now be ...

  3. Military Grid Reference System - Wikipedia

    en.wikipedia.org/wiki/Military_Grid_Reference_System

    However, even if every position being located is within a small area, but the area overlaps multiple 100,000-meter squares or grid zones, the entire grid reference is required. One always reads map coordinates from west to east first (easting), then from south to north (northing).

  4. Projected coordinate system - Wikipedia

    en.wikipedia.org/wiki/Projected_coordinate_system

    A typical map with grid lines. The Ordnance Survey National Grid (United Kingdom) and other national grid systems use similar approaches. In Ordnance Survey maps, each Easting and Northing grid line is given a two-digit code, based on the British national grid reference system with an origin point just off the southwest coast of the United ...

  5. Public Land Survey System - Wikipedia

    en.wikipedia.org/wiki/Public_Land_Survey_System

    The most noticeable artifact of this system is visible on maps and satellite images in that the general street grids of Green Bay, Allouez, Ashwaubenon and De Pere are all aligned to the Fox River, being rotated about 25° from north, in contrast to the standard east-west grid of the surrounding townships in Brown County.

  6. Open Location Code - Wikipedia

    en.wikipedia.org/wiki/Open_Location_Code

    The Open Location Code (OLC) is a geocode based on a system of regular grids for identifying an area anywhere on the Earth. [1] It was developed at Google's Zürich engineering office, [2] and released late October 2014. [3] Location codes created by the OLC system are referred to as "plus codes".

  7. Global Area Reference System - Wikipedia

    en.wikipedia.org/wiki/Global_Area_Reference_System

    Under the Chairman of the Joint Chiefs of Staff Instruction CJCSI 3900.01C dated 30 June 2007, GARS was adopted for use by the US DoD as "the “area-centric” counterpart to the “point-centric” MGRS". It uses the WGS 1984 Datum and is based on lines of longitude (LONG) and latitude (LAT). It is intended to provide an integrated common ...