How Do You Read an MGRS Coordinate?
An MGRS coordinate reads coarse to fine: grid zone, 100km square, then equal halves of digits for easting and northing. A plain-English guide to reading the grid.
Read the guide → June 9, 2026 mgrs vs utmMGRS vs UTM: What Is the Difference?
MGRS and UTM share one projection but format location differently. UTM uses long numeric eastings for math; MGRS adds a lettered square for fast field use.
Read the guide → June 2, 2026 plot a grid coordinateHow Do You Plot a Grid Coordinate on a Map?
To plot a grid coordinate, find the 1,000 meter square, then use a romer to step right along the easting and up along the northing. A plain-English plotting guide.
Read the guide → May 26, 2026 offline gps appWhat Is the Best Offline GPS App When You Have No Signal?
GPS works with no cell signal; your phone gets a fix from satellites directly. A field guide to truly offline navigation: cache the map, read the chip, carry backup.
Read the guide → May 19, 2026 grid bearingHow Do You Find a Grid Bearing?
A grid bearing is the angle from grid north to your target, measured clockwise on the map. Plot, draw, read with a protractor, then convert to magnetic to walk it.
Read the guide → May 12, 2026 grid zone designatorWhat Is a Grid Zone Designator?
A grid zone designator like 18S leads an MGRS coordinate: the number is the UTM longitude zone and the letter is a latitude band. A plain-English explainer.
Read the guide → May 5, 2026 convert lat long to mgrsHow Do You Convert Lat/Long to MGRS?
Converting lat/long to MGRS projects the coordinate into UTM, then relabels it with a grid zone, square, and split digits. Match the datum and use a tool.
Read the guide → April 28, 2026 mgrs appWhat Makes a Good MGRS App for Search and Rescue?
A SAR MGRS app should show a live grid, plot a called grid in under a second, work offline, and drop waypoints. It supports incident command, it does not replace it.
Read the guide → April 21, 2026