Be careful taking the road past the parking lot! There is a deep mud pit on the right that looks just like normal dirt. When going in stay to the left, and when leaving stay right
GPS led me to the wrong location as I'm sure it did many - route yourself to Six Mile Canyon RD instead, it should take you to these coordinates:
Lat: 35.439524
Lon: -108.545567
You'll see the lot at first. I couldn't tell if there were campsites there or not (looked like they were at least walk ins, but it's so quiet I'm sure you could do whatever here).
I took the road back. I was skeptic because it looked real beat up and I'm driving a Kia Forte, but it took me back to a campsite when I took a right at the fork. It only took about 3 min to get there, no idea how far back you need to go if you take the left at the fork.
Overall they're quite sites tucked away. My site has a very primitive fire pit, not sure if it's like that at every site. It's also super buggy out here so make sure to bring spray!
Saw a lot of people saying it's right off the highway, it's maybe about 5/10 minutes back once you get the right exit, so not bad at all if you need a night to just crash.