I live just 7 miles away, but I love to take my grand daughter here for overnight camping.  Most of the sites are tucked into the woods and very spacious.  It's only $7/night!  There is some play equipment for children.  There is only a pit toilet in the campground and it's nice enough for midnight runs.  (Bring your flashlight!)  Drive up the road to the observatory and there is a bathroom with flush toilets and a hot shower, also a water spigot on the back side.  There is also a big group site for family get togethers.  There is a nice little circle hike that's not too difficult and was great for rehab after my knee replacement.  I'd highly recommend it, but I don't want it to get too crowded!