This has been one of my back burner projects for a long time. I've been doing A LOT of ArcGIS Online maps for my day job lately. Figured it was about time to get this one done before we head off to Pennsic 44 this year.
I downloaded the overlap map from the Pennsic War site today, 7/23/15. The map image is from last year, Pennsic XLIII (43; 2014). It was made by "Aakin". I don't know Aakin, but would like to thank him for his excellent map. I hope he doesn't mind me georeferencing and loading it up to ArcGIS Online for all to use and admire. I'll ask around Pennsic when I get there. Hopefully he'll be there.
Also, Cooper's Lake Campground has had a lot of rain this year and have had to close some camping blocks. Here is a link to the Facebook post. Check the Facebook page for the latest updates.