We spent several nights at Franklin Lake Campground in the Nicolet National Forest, east of Eagle River, Wisconsin. It's a beautiful campground placed in a dense forest on a north woods lake. There is one bath house with flush toilets (no showers) but mostly pit toilets. Sites are irregularly sized, gravel surfaced, and some leveling was required. Electricity is not available and you have to haul water. There is no dump station at any of the Federal campgrounds nearby but there is one in Eagle River.
We really enjoyed our stay here birding in the north woods and exploring the general area. There is a terrific grocery store in Eagle River (Trigs). Temperatures were in the 50s at night, very nice August temps for these southeast Texans.
I would stay here again anytime.
http://www.fs.fed.us/r9/cnnf/rec/camping/nic_7.html