The 4th edition of Curious Gorge is the first guidebook to ever describe the Mitchell Point trail as a loop outing. The Mitchell Point trail is a semi-unofficial trail, built by a fellow named Kenn Lantz a few decades back. Nowadays State parks sort of maintains this unofficial trail, though there are no signs nor any indications that the trail exists.
Here is a map to try to help you with the loop description in Curious Gorge. If you are interested in the history of Mitchell Point and its famed tunnels, then please click on the next blog entry where I’ve detailed the history of the tunnels and their demise.