How to Make Your Own MGRS / USNG Maps

To do good land navigation, you really need the MGRS grid overlay. UTM is too clunky, and Lat/Long is just a total non-starter. The civilian version of MGRS is called USNG, the only difference being that there are spaces at natural points in the grid. For example, if the MGRS grid is “13SDC23564332”, the USNG is “13S DC 2356 4332”. Simple enough. Unfortunately, it has traditionally been difficult to get MGRS maps outside of the military and whatever areas they deemed fit to print maps of. Enter GISsurfer, a free service based on GIS that allows users to create their own MGRS maps. You can even overlay satellite and roads if you wish. Let’s jump in: 
      1. Go to GISsurfer.
      2. Click “Menu”
      3. Click “UTM MGRS/USNG Lat/Long”
      4. Click either “MGRS” or “USNG” Screen Shot 2019-11-16 at 7.03.40 PM
      5. Zoom to wherever you want a map.
      6. Select other GIS options, such as satellite, roads, contour lines, or the like. You end up with a map, in this case zoomed up so that each gridsquare is a kilometer. Nice.
      7. The final step is to save the map. On an Apple, I can choose File–>Print, choose paper size and layout, then “Save as PDF.” Your mileage may vary.
Happy hunting, and remember your panic azimuth.