You seem to be actively searching for the LDM. Here is a location, described in Barry Storm's book, "Thunder Gods Gold", that has apparently yielded some gold ore. The chapter titled "Jenkins' Lost Lode" includes a photo of where Jenkins found his piece of rich gold ore, and that location is on a slope of Hackberry Mesa. There is now a mine adit and trail to the mine on that same slope, both of which were not there in 1945 when Storm's book was published. Someone found "Jenkins' Lost Lode" before Barry Storm could get to it.
The mine adit is not the LDM, but going to that location could show you what a gold-bearing quartz vein looks like, and you might even be able to come back with some samples containing visible gold. I think I can see a quartz seam running down the slope to the mine adit, but don't take my word for it. Use GE to see if you see what I see. This mine adit, by the way, was home for Jay Clapp for eleven years, before he vanished in the early 1960's.
To get to the mine adit, drive just past the bridge over Willow Springs Creek to a parking area along Apache Trail, then hike south, following the creek bed. Once you've reached a point below the mine adit, you can hike directly up the slope, or go farther south to where the mine trail backtracks north up the slope; the choice is your's. You'll probably want to begin hiking very early in the morning to allow enough time for the round trip and for some time to linger at the mine. If the quartz seam is exposed and untouched above the mine, you might want to go there. If you find quartz, but see no visible gold in the quartz, you'll know that you're at a dead end; the good stuff has obviously been grabbed by someone who got there first.
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