[runjake]

I think you meant this for point #2 but its important to clarify: you should be carrying PAPER maps —- preferably laminated if your environment calls or at least stuffed in a gallon zip lock bag.

So many things can and do go wrong with gadgets.

This comment posted while on a remote backpacking trip with somehow just enough coverage to load HN.

[EL_Loco]

The person I mentioned actually meant just digital maps installed on the gps/smartphone. He completely agreed with you on how important it was to have paper maps, but he said most people either didn't see the point, or thought he was recommending them (paper maps and compasses) because he was old.

[LBJsPNS]

A map with a bullet hole in it is a map. A GPS with a bullet hole in it is a doorstop.

[Fatnino]

The hike down to the east off Mission peak in Fremont requires you to have a paper map on you.