I have just the place for you: Fish Lake Valley, Nevada
Remote, difficult of access, families that go way into the mists of history, and play some mean banjos, fiddles, etc, whilst singing the “auld tyme” songs? Modern technology still under suspicion? Maybe even a snake-handling church (just for local color, mind you, I hate snakes with a passion)? All of this having a certain branch of “southern” flavor? I guess I need a Time Machine rather than a map, LOL.