Peaceful and quiet getaway
I have visited this campground many times. It is a small Forest Service campground next to the south fork of the Snoqualmie river. The site well shaded and fairly privet for the most part. No real ammenaties so I would call this organized bone docking. Camp host is on site #2 and firewood is available. Vault style toilets are available and a hand operated well pump for drinking water is at the entrance. Hiking abounds around the campground. The river is cold and shallow but very peaceful. With no playground or organized swimming area there aren't a lot of children but those that are there can have fun exploring, splashing in the river, bike riding and so on.
Pros: woodsy, peaceful, relatively quiet, close Seattle so you can go camping Friday after work. Reasonably priced.
Cons: yes you can hear the freeway. If you close your eyes and relax it Lund like the river until you hear a jakebrake but that's not very often. Most sites are not reservable but rarely is the park full. Road to Tinkham can be pretty rough.
All in all this is one of my favorite quick getaways close to home and will return many more times.