The point of all this is properly used, a PLB, GPS or Garmin inReach could have saved Gerry Largay.
Pick your tech. A GPS will keep you found. If you get in trouble regardless and your cellphone can’t connect, you need something with more reach and these days a satellite is the solution — one-way beacon with a PLB or two-way comms with inReach.
Alternatively, you can risk having your name in the subject line of a thread on the Equipped Survival Forum... your choice.