25 Skills Every Man Should Know - Essential DIY - Popular Mechanics9. Navigate With a Map and Compass Though GPS may seem ubiquitous, it doesn’t work everywhere. Mountains and dense tree cover can knock out sat signals—and batteries can die. Here’s how to roam the backcountry with a compass and topo map. Orient the map by aligning its magnetic north (MN) indicator with your compass’s reading of MN. Pencil the MN line across the map, then anchor the map in this no
