Romer Readers are used to help locate U. S. National Grid coordinates on hard copy USNG maps.  Quality and price vary for cards, but these are an essential tool for use with USNG maps in the field.

SharedGeo Romer Readers Cards

SharedGeo Romer SharedGeo, a nonprofit with the mission to help orgnizations use mapping technologies and share geographic data for the public good, offers low cost romer readers cards.  Contact SharedGeo for more information.


MapTools Map Readers

maptools MapTools provide a variety of map-reading and romer tools.


FGDC downloadable USNG Reader template

The Federal Geographic Data Committee (FGDC) provides a downloadable USNG grid reader template on the FGDC USNG web page .