I’ll echo what someone else said, which was very helpful: the GPS will take you to the American Forks campsite. Just keep going past that one, and you’ll see Cedar Springs on the left.
We had spot 9, which was right on the water. You couldn’t see the river from the site, you had to walk over to the edge, and it was a bit of a scramble to get down/up, but still perfectly safe for older kiddos. I wouldn’t want to have tiny ones there, without watching them. We were there in early August, so the water wasn’t very deep at all. You could walk all the way across it.
The campground allows dogs, and most of the dogs were well-behaved, and so were most of the campers. Unfortunately right after dark, a group showed up across the street from us, partying until after midnight. (Mostly it was one guy— I kept falling asleep and then he’d shout something and wake me up.)
Their site was right by the bathrooms, so every time we would go to the bathroom, their dogs would rush at us, barking, and the people would yell at their dogs to be quiet and to come back. The next night (Saturday), the whole group was a lot quieter, so the whole campground was really peaceful. The dogs ended up coming over to our site a lot during the day (after hiking, before dinner), and we made friends with the dogs. (We knew their names from hearing our neighbors shout at them so much.)
Never saw the host, but their site was easy to discern, and the vault toilets were clean and well stocked with TP. Apparently the men’s seat is rusty and gross (according to my partner), but the women's was just fine. (There’s really no point in having them differentiated anyway, since they’re single occupancy! Hopefully they’ll change that soon, as all-gender single-occupancy bathrooms are becoming the new standard.)
This campsite is about an hour from Sunrise, and there’s a little store & restaurant & gas station half an hour in the other direction in Naches. Didn’t try the restaurant, but the store had ice, water, and random camping supplies you might have forgotten.
Sites are pretty open, and you can see your neighbors pretty clearly, and at times their headlamps were bright enough to shine all the way into our eyes while we were sitting around our fire. I understand there’s not a lot for privacy to be made in a desert alpine forest; just noting it.
Overall this was a great location. Would have been five stars if the host had tried to enforce quiet hours, or if there was more privacy. If I could give 4.5 stars, I would.