We stayed in Site 11 for 2 nights at the end of June 2025.
The campground is located on the side of HWY 12 on a small rocky peninsula, this surprising spot on Rimrock Lake (reservoir created by the dams built about 100 years ago) is run by a retired couple for the last 5 years (as of summer 2025).
It offers a boat launch, 25 or so sites of mixed services (ranging from full hookup [elect/water/sewer] to basic site with picnic table and firepit), and a couple of cabins, and a bath-house on the east side (2 separate restrooms with shower stalls).
The sites are mostly back in, with a few (like site 11) that are pull-through.
The western side sites (1 - 17?) have beautiful views, but the typical afternoon/evening wind can be quite, well, windy, while the eastern side is sheltered from the wind. We hiked around the small peninsula and the wind disappeared.
The small office has a few snacks and camping items but isn't open all the time - only when the owner couple is around.
If you are going to go hiking, you only need to drive a few miles west on Hwy 12 to find several other public campgrounds and some nice scenery, while continuing west up towards the pass and ski resort area on Hwy 12 has several scenic viewpoints that you should plan to stop at for a few minutes each (Lava Falls, etc).
The lake itself is rather sparsely used (one or two boats or a jet ski way off in the distance). We had three very friendly chipmunks who visited our site often and were happy to sit on the old stump and join our camp.