Site Under Construction
We are actively building and refining this site. While work continues, we’ve published select materials for early access and reference.
What is U.S. National Grid (USNG)?
The U.S. National Grid (USNG) is a coordinate system that divides the country into a grid, allowing anyone to communicate exact locations using simple alphanumeric codes. Based on proven military grid technology, USNG works in cities, rural areas, and wilderness, making it invaluable when traditional addresses fail. The USNG Information Center is dedicated to providing educational items and resources to support use of the U. S. National Grid.
Why USNG Matters
Federal Geospatial Standard
Free, standardized coordinate system based on
proven military grid technology
Precision That Saves Lives
10-meter accuracy enables fast rescues and
emergency response coordination
Maps, Apps, & GPS
Integrates seamlessly across all platforms from
paper maps to mobile devices
Choose Your Learning Path
Find here a wide range of training materials that will help individuals and groups better understand the U.S. National Grid.
New to USNG?
Learn the basics of how USNG works, from understanding coordinates to reading maps
GIS Professional?
Get USNG implemented in your mapping software with technical guides and code examples
Emergency Responder?
Use USNG for effective incident response, navigation, and multi-agency coordination