The wife and I would like to visit the Mammoth Lakes area next week. A lot of the campgrounds are pretty booked and most sites are stacked tight like fine china. We don't need all the amenities like a toilet and showers. I'd like to find a quiet, safe place. My tacoma is very capable. On the west side of the Sierras near Shaver and Huntington Lakes we never camp in "formal" designated campgrounds. Any ideas?