Beautiful area, great location with plenty to do, but docked a star because it was packed! We arrived before noon on a Friday morning. Cottonwood Lake Campground was already full, and there were almost no dispersed sites left - or so we thought. By Sat night, we saw that we just weren't very creative when it came to finding dispersed camping spots (or maybe we were too picky) - every nook and cranny that could fit a tent or vehicle was filled. We did find a great, secluded spot about 4 miles past the campground / ~2 miles past the sign that reads "very limited dispersed camping beyond this sign" (the sign was accurate). There were some great sites that offered enough seclusion along the creek in the busy dispersed area closer to the lake (all full when we arrived).
This area works well if you just need a place to park and sleep but intend to spend most of your time away from camp taking advantage of the plentiful recreation opportunities in the area. If you're going to spend a lot of time hanging out at camp, plan to arrive on Wed or Thurs morning latest to get a good spot. The lighter you're traveling, the easier it will be to find a spot.