Very close to 5 stars, which I will only give for spectacular locations like the Four Corners area or the Oregon Coast. But Cold Creek is very thoughtfully laid out, within some spectacular scenery and off of some great trails (Bells Mtn., Yacolt Burn, Tarbell… see pics!), + it's a bit of a last option within the Sunset/Rock Creek/Battle Ground Lake quadfecta. That's probably due to its smaller size and an added difficulty in finding. What is does mean is it's extra quiet, this + campsites that are often nicely down or around the bend of 20-40 foot paths, adding to the seclusion and quiet. Helpful, chill camp host mom with a friendly young son, plus a refreshing creek with a small waterfall. She said people take down the Forest Service road signs all the time, though this campground still wasn't hard to find, partly due to the large trail map signs sprinkled throughout the area.
A nice creek valley, clear easy camp sites with decent spacing, a short walk to a waterfall swim hole, huckleberry and mushroom picking and fantastic sightseeing in Gifford Pinchot top the list here. It's four stars if you get a campsite creekside (which is also further away from the road), three stars for anything else. If Sunset is full, Rock Creek Horse Camp and Cold Creek can each accommodate tent campers - Battle Ground Lake too.
This is a solid spot, fun to find and a great mix of smallish-medium campground size, tall mix of trees, nice area full of near-legendary trails and two nearby campgrounds (Cold Creek and Sunset) that you can go to if Rock Creek is full. I would get here on a Friday night, hike the nearby Tarbell (right from this campsite), Yacolt Burn or Bells Mountain trails to your hearts content Saturday, and relax Saturday night into Sunday. Or jump on the Trillium Mountain Bike trail. This place is a little harder to find because a lot of the Forest Service road signs get vandalized and taken down, but even I found it (through copious trail signs like the one pictured).