Gee Pee Eees?
I just ride until I get lost, then hope I have enough gas to get back on roads I know
I have a Garmin in the car, but that's it. Depending on the model I think you can do something with Google earth and make tracks that can be loaded onto another GPS.
I'm sure someone will be along that knows how to do it.
I have some places I would take you riding, but you can't bring a GPS.
The only reason I can ride there is because it's only me and who ever is with me.