NOAA’s National Geodetic Survey (NGS) provides the framework for all positioning activities in the Nation. The foundational elements of latitude, longitude, elevation, and shoreline information impact a wide range of important activities.


Learn more about:

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GNSS & GPS Data

Get coordinate information and the tools you need to work independently.

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Remote Sensing

Download data and critical information into nautical charts.

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Land Surveying

View guidelines and get tools to support land surveyors.

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Geodesy

NGS works closely with the global researchers advancing geodetic science.

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Training & Education

Classes and educational resources on scientific topics relating to geodesy.

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Datums & Transformations

NGS defines datums to help align data and tools to transform coordinates.

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Looking for Benchmarks graphic - links to datasheet page

Emergency Response Banner

Post Event Aerial Imagery:
Hurricane Zeta

Previous Storm Imagery


Updates

Important Updates: NSRS Modernization Delay Message

Deprecation of the U.S. Survey Foot

Beta Release:
Leveling Projects Page

Passive Mark Page


In the News

12/11/2020 - NGS, Partners Coordinate on Geodesy Technologies

12/04/2020 - NGS Contributes to International Geodesy Working Groups

11/20/2020 - NGS, Local Groups Work to Update Heights in Texas

Previous News Stories