Checked in about 8:30pm on weekday for car/tent camping.  Got last spot on upper tent loop (FC/FS-self serve).   Upper tent loop also has some RV spots. It seems like a very popular spot for XC RV drivers. The upper loop was very quiet, both the people and the area, and far enough from Interstate that Hwy noise was not an issue. The only problems were the wind(strong in am), and the lack of running water. Vault toilets were clean enough. The faucets near toilets did not work. The only available water was from the green well pump, and it had noticeable color to it. I used it for cooking and cleaning, but not drinking. Great trails! We did a nice 3.5 mile loop around Turtle Rock. It has good and climbing/bouldering, wish I had more time for that. It was cool due to a recent rainfall, and the 8000'ish elevation kept it that way at night. All creeks were dry in late august, and the 3 ponds were nearly so. Very pretty spot that feels more remote than it is. There is a lower tent walk in loop, which is much better sheltered from road noise and wind.  The lower tent loop has vault toilets, but it does not have water as far as I could tell.  Lower tent loop was completely vacant and available, while upper RV/tent area was full.