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There so many dirt roads over the whole range just begging to be explored. I have been hesitating for the same reasons as you. It is so confusing! You could be wandering around in the mountains for days!
With any decent GPS you will never be left lost if you simply take the trouble to explore your GPS a little bit before you take off exploring some part of the planet.
Make sure the track log is turned on. Clear it at the start of your offroad trek. If the feature exists on your GPS, turn on the option that makes the track show on the display behind your position indicator (breadcrumbs for those who grock Hansel & Grethel).
If it's a long complicated journey save your track with a name occasionally but don't clear the track log.
Then, when you are totally lost and confused, save the current track again (belt and suspenders) but don't clear the track log, set the "show track on map" option on for that saved track or for the track log and follow it back to your jumping off spot.
So simple if you're prepared in advance.
Anyone who gets lost while packing a modern GPS is a candidate for the Darwin award and should just stay lost.
As I tell my wife when we do just that sort of thing, I may not have a clue where we are but it's really pretty and I know how to get us home.
...ken... Sit down, shut up and hang on!!