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2

On mobile devices, the Gaia GPS app allows creating a waypoint using whichever format is currently selected (which includes UTM). From your computer, you can enter UTM coordinates into CalTopo; this is convenient if you are printing out paper maps. (It also has some ability to annotate maps and save them to KMZ/KML files for use with Google Earth or your ...


3

There are many devices that will let you enter in UTM and LatLong coordinates interchangeably. be sure to bring a waterproof map with you too though. http://www.rei.com/product/869473/garmin-gpsmap-64-gps http://www.magellangps.com/Store/eXploristSeries/eXplorist-510


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I would recommend UTM coordinates; it avoids the formatting uncertainty of lat/long and is better suited for ground operations. (Easy to translate to paper maps, define search areas, and calculate distances.) If you use the WGS84 datum, the numerical portions are also identical with the military grid reference system (MGRS) and the national grid (USNG). ...


2

Always have a water proof map of the area you're traveling in ( one with coordinates on each side if you can help it ), and a compass you can use to triangulate your position with. You'll be better prepared in an emergency and more confident outdoors in general if you practice triangulating your position until it comes naturally: ...


0

I'd give my position in terms of landmarks ("I'm about five miles up Independence Creek; look for the silver emergency blanket draped over the bushes"). If I had a GPS, I'd also give coordinates in whatever units it displays. If you've ever gone geocaching, you'll know that while coordinates are precise, they don't tell you what the terrain is like or ...


13

I'd give them whatever my device or map provided me, and let them convert to whatever their devices or maps use. Anyone used to receiving lat/lon coordinates regularly should be able to convert from various formats to whatever they use internally. You're the one in trouble with limited resources. You're out there with a broken leg, lost, in the cold or ...



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