Bringing the World Together, One Piece at a Time

U.S. National Grid Mashup

A project of SHAREDGEO

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Larry Moore's Original Effort to Make U.S. National Grid Understandable on Google Maps

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Example of How a Mashup Works - The technology to determine USNG coordinates is laid over Google Maps

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U.S. National Grid and GPS Were Made for Each Other!

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Look For U.S. National Grid on Hand Held Applications!

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Since November 2011, USNG is the National Search and Rescue Committee standard for ALL land based Search and Rescue

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USNG is part of the worldwide Military Grid Reference System (MGRS) used by Department of Defense for more than 60 Years

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NGA uses USNG/MGRS as the base coordinate system for all maps it produces for disaster response efforts

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FREE USNG maps are available for the entire U.S. at:

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FREE USNG maps are available for the entire state of Minnesota at:

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The BIG BOLD NUMBERS found on map margins are the "other coordinate system" - U.S. National Grid

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10KM USNG squares near Duluth Minnesota

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100KM Gird Squares of the U.S. National Grid - Twin Cities Minnesota Region

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The U.S. National Grid Mashup Project also supports the SharedGeo USNG Emergency Location Markers project -

Update the U.S. National Grid Google Mashup and build additional versions in Bing and OpenStreetMap as funds allow.

Background: The integration of the U.S. National Grid (USNG) coordinates in online web mapping systems has only been partially implemented on a variety of web mapping pages. When not in possession of USNG standardized printed map products, one of the most difficult things to do is to take a USNG coordinate and quickly produce a basic, readable map, or visa versa: take a basic map or address and obtain a USNG coordinate. To relieve this difficulty, Larry Moore developed a web map based on the Google Maps API that incorporated USNG coordinates (

How Funds Donated Here Will Be Used: The intent of this Shared Funding Project is to upgrade Larry Moore’s orginal work to the latest version of the Google Maps API and in doing so allow for some basic enhancements that will add usability. As funds allow, similar capabilities in Bing Maps and OpenStreetMap will be implemented.

SharedGeo is an IRS approved 501 (c) 3 nonprofit. You will receive a tax deductible receipt for any donation you give.

Learn more about this project at the SharedGeo U.S. National Grid Mashup project page.

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Organization Information


1-888-877-SGEO (7436)



Helps government, nonprofit, education, and corporate entities use mapping technologies and share geographic data for the public good.

EIN: 263608799

Reports: Guidestar

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