We stumbled upon this dispersed camping area after driving forest service roads for a while. I would NOT recommend taking any kind of trailer or motorhome down these roads and to this spot.
To give you an idea- we drove a Toyota 4Runner and a small utility trailer with a roof top tent on it. Though this is some room down there, if someone else is there, I would move on.
There were some locals who came through and talked to us for a while when they were fishing in the lake. They said that they had been coming to this spot for 30+ years and rarely saw anyone else there. So this is my plea- if you come here, be respectful and clean up after yourself. If you are there in the right time of the year, stay out late and turn off your lights- you'll get a night surprise.