Birch Grove Campground is open April 1st, until the end of September each year. It includes wooded parking for tents, popups, and even RVs. Their site mentions full hookups are available, but we did not confirm this completely. Their website is very basic, and does not include too much information. You may need to call them to find more about this facility.
Related Sites / Links:
On a random visit to the park, we walked both the trails and the campground. It looks like an older township park, that was a little dated, that had some campsites added at one point a while back. We did not check out the bathrooms, but we would hope they are jept up by the employees we quickly talked with. We may try to get back here again to stay a night. If we do, we'll provide an update.