An official website of the United States government.
Here's how you know we're official.
A .gov website belongs to an official government organization in the United States.
A small lock or https:// means you’ve safely connected to a .gov website. Share sensitive information only on official, secure websites.
The Importance of Accurate Coastal Elevation and Shoreline Data (National Geodetic Survey)
Best Practices for Minimizing Errors during GNSS Data Collection (National Geodetic Survey)
Two Right Feet? U.S. Survey Feet vs. International Survey Feet (National Geodetic Survey)
Precision and Accuracy in Geodetic Surveying (National Geodetic Survey)
What's Next for Geodetic Datums? (National Geodetic Survey)
What is the Status of Today's Geodetic Datums? (National Geodetic Survey)
How Were Geodetic Datums Established? (National Geodetic Survey)
Social