We tried to get first come first serve sites in J tree but they were all taken. Got here in the dark as a last resort and there was a lot of space, but also a lot of trash and dilapidated cars (which was moderately creepy and unpleasant). There was also a large group of people riding jeeps and dune buggies very fast and late across the land. Like I said, worked for what we needed but wasn’t an ideal spot.