The utility of a communications device is, if I recall correctly, equivalent to the square of the number of people who can be reached using it.

A telephone system with one person on it is useless. A telephone system with two people on it is of limited value. A telephone system by which you can instantly reach over a billion people is very valuable indeed.

When cellphones were new, they would have been nearly useless if they weren't integrated into the already well-established landline phone system. Now, I understand there are more mobile phones than landline phones, people are more reachable now than they were thirty years ago, and the system is even more valuable than it used to be.

I can see Beartooth being very useful if you bring friends with you who have and use Beartooth. Otherwise, I suspect that you'll do better with FRS. If the area you're operating in has Ham radio repeater coverage, you'll do even better.