Start at the entrance to Odessa Canyon and go through the arches on the west side of the canyon wall. Rather than continuing up Odessa, head east across the mud hills to Phillips Canyon. Turn up Philips and follow it until you come out on the east rim of Odessa. Continue up the rim until you get to the downhill that takes you into upper Odessa (above the hard part). Continue up Odessa then turn left toward Sweetwater Spring. Continue past there and veer to the left (south) again to come to the Bismark Mine, which is at the top of Doran Canyon. After taking a look around, backtrack to Upper Odessa and take the gravel road out to the Tin Can Alley area at the top of Mule Canyon where the old borax mines were. Then take Mule Canyon all the way back down to Ghost Town Road. Let me know if you'd like a GPX file for it.