The 10 essentials. (List) Don’t leave home without them, especially if going into the backcountry.
I would post the list, but my battery is done.
Goodnight. SW USA.
And you just answered why having a cell phone in the wilderness is the backup to non electronic gear.
I once went on a multi day trek. The guy leading told me he had the maps. What he didn’t inform us of was that his maps were on a Apple Watch.