I think the previous reviewer got a bit confused - Patterson State Park is a small campground in PA near Cherry Springs State Park. I kind of view it is overflowing camping for the campground there. In that way, it serves its purpose. It has around 8 small, open campsites around a small gravel loop. The sites are a bit too expensive for what you get: limited privacy, no feelings of really being in the woods. But there are bathrooms, water, and a pavilion! There's also a trail head that I believe connects with the STS at some point (We didn't actually start any hikes from this point.) There's a pay station and all sites are first-come first-serve.