I use BackCountry Navigator. Free trial, ten or fifteen bucks. Download satellite and topographic maps beforehand. Record trails, export to your laptop, edit them into a map. Works good.
I even bought a cheap 8" tablet and mounted it in my dash. Better display, and $60 if I kill it, not a $500 phone.
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DIRTY DEEDS, DONE DIRT CHEAP
Whatever doesn't kill you makes you stranger
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