Spent a weekend at Rancheria and it delivered exactly what we wanted— a quiet, low-key few days at Huntington Lake with nothing much to do but be there.
Site Selection Tips: We were in the 110's section and I'd steer people there. It feels noticeably less crowded than the other loops, with good spacing and shade. If you want a quieter stay, aim for the higher-numbered sites rather than the ones packed in closer to the middle of the campground.
Lake Access: The lake is a short, easy walk— convenient if you want to get in the water. Getting into the water is the harder part. The shoreline near the campground is thick with downed logs and trees right up to the edge, so finding a clean entry point takes some scouting. Doable, just not a walk-in sandy beach.
Amenities: Potable water and restrooms were easy to get to and clean the whole time we were there. Standard fire ring, table, and bear box at the site. No showers.
Camp Host: Very diligent and visibly present. He was on top of keeping the grounds in good shape, which showed.
Cell Service: Essentially nonexistent at the campground. I'm told you may pick something up over near the marina on the far side of the lake, but plan on being out of contact for the weekend. Bring satellite if you need to stay reachable.
Activities: There's plenty out there, but nearly all of it requires getting in the car. We drove out to Mono Hot Springs— about 75 minutes each way through the mountains on a one-lane road. Worth doing, but go in knowing it's a real drive, not a quick errand. Same goes for most of what's in the area: the lake is what's at your doorstep, everything else is a trip.
Noise& Ambience: The campground itself is quiet. There happened to be a concert across the lake on Sunday— we went over for it, and coming back to camp afterward with the music still carrying faintly over the water made for a nice festive ambience. A pleasant bonus rather than a disturbance.
Overall: Recommend it if the intent is a low-profile weekend. There isn't much within walking distance beyond the lake itself, which is the appeal. Come for the quiet, and plan a drive if you want more.