This place is a dream. Free dispersed camping anywhere you see, & pretty well maintained dirt roads throughout. The landscape is just beyond beautiful and the area is so big to explore. There may be other people, but it would be a challenge to run into them unless going on one of the more popular hikes.
There’s little to no cell service in many areas, so be prepared for that. It can also get very hot.
I loved camping here. There’s a few spots off the road that leads into the hot springs, before you hit the sign that says no camping. Just pull onto one of the dirt roads on the left and find a spot! Any car or smaller RV could easily drive the road.
There was no one else there when I was camped there, and as a solo female traveler I felt extremely safe. It was quiet and secluded, beautiful, yet only 10 minutes off of 395, less than a mile from the hot spring, and I had full LTE cell reception (verizon).
There are rock fire rings that previous campers have made if you’re going to be here when camp fires are allowed. There’s no other amenities such as picnic tables or a bathroom, water, or garbage collection - this is free dispersed camping, so be prepared to be self-sufficient: pack out what you bring in and leave no trace!