Yes the trail down to ranch was documented and as "don't try". My tracks in this area are all proofed by me last year. I still want to try to follow the GWT signs east form Jacob Lake.
I am in flagstaff working on option to bypass Williams, go past Falgstaff to Wupatki. Did 137 miles today with about 5 miles of gas left when I got back to Flagstaff.