I love these little hills, they provided me with alot of good times when I was young and they still have many cool areas that surprise me still! Thanks for adding this page, and the two trees trail as a route, and please give a little more information on this area.
There were no fees required at Box Springs Mtn park when I visited in the summer of 2011.
The HP is 3,080 feet, marked "Box Springs Lookout" on the map, topped by a monumentally ugly tower with spray paint, etc. It's the 2nd-to-last tower before the road ends near the "M". When you're on it and sighting back, it is clear it is higher than the nearby ridgepoints.