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  2. U.S. National Geodetic Survey - Wikipedia

    en.wikipedia.org/wiki/U.S._National_Geodetic_Survey

    The National Geodetic Survey (NGS) is a United States federal agency based in Washington, D.C. that defines and manages a national coordinate system, providing the foundation for transportation and communication, mapping and charting, and a large number of science and engineering applications.

  3. National Spatial Reference System - Wikipedia

    en.wikipedia.org/wiki/National_Spatial_Reference...

    The North American-Pacific Geopotential Datum of 2022 (NAPGD2022) is a new geodetic datum set to be produced by the U.S. National Geodetic Survey in 2025 or 2026 to improve the National Spatial Reference System (NSRS).

  4. Benchmarking (hobby) - Wikipedia

    en.wikipedia.org/wiki/Benchmarking_(hobby)

    Benchmarking, also known as benchmark hunting, [1] is a hobby activity in which participants find benchmarks (also known as survey markers or geodetic control points). The term "benchmark" is used only to refer to survey markers that designate a certain elevation , but hobbyists often use the term benchmarks to include triangulation stations or ...

  5. National Geodetic Vertical Datum of 1929 - Wikipedia

    en.wikipedia.org/wiki/National_Geodetic_Vertical...

    The National Geodetic Vertical Datum of 1929 is the official name since 1973 [1] ... (NGVD 29) May 10, 1973, by the National Geodetic Survey, ...

  6. State Plane Coordinate System - Wikipedia

    en.wikipedia.org/wiki/State_Plane_Coordinate_System

    The National Geodetic Survey has announced a modernization of the National Spatial Reference System, and a replacement of the state plane coordinate system will be part of the modernization. The number of zones will be substantially higher than the 1983 system.

  7. United States Geological Survey - Wikipedia

    en.wikipedia.org/.../United_States_Geological_Survey

    In 1879, a report from the National Academy of Sciences prompted Congress to set up a federal survey agency, in part to inventory the vast lands added to the United States by the Louisiana Purchase in 1803 and the Mexican–American War in 1848. The USGS was authorized on March 3 in a last-minute amendment to an unrelated bill that charged the ...

  8. VERTCON - Wikipedia

    en.wikipedia.org/wiki/VERTCON

    The program was created by the National Geodetic Survey (NGS) in 1994 and is available as an online tool, [2] or PC executable package. [3] The package contains the Perl source code. The NGS is the government agency charged with responsibility for the National Spatial Reference System. [4]

  9. United States Coast and Geodetic Survey - Wikipedia

    en.wikipedia.org/wiki/United_States_Coast_and...

    The National Ocean Survey was renamed the National Ocean Service in 1983, [3] and thus the National Ocean Service, National Geodetic Survey, Office of Coast Survey, and NOAA Corps all trace their ancestry to the United States Coast and Geodetic Survey, and the NOAA fleet does in part as well.