I really hope this man can be found. Where they know where he was last seen, he must have had a reason to be at that obscure location, which can hopefully lead to him being found. There are so few landowners in that area, I wanted to make sure of the location.
On that link, Google maps showed an address of 21 Oatman Highway as a suggestion, because google maps doesn't show mile markers! There was no red pin, unless you put the cursor over the address suggestion.
In fact, if you ask google about mile markers on highways, it says to look for the nearest exit, and that will [sometimes] have a mile number, or google said to google walk the highway to look for the mile marker. Since the Oatman Highway doesn't have exit numbers, I google walked the highway. Mile marker 23 is just south of Oatman, AZ. Mile marker 22 is 1 mile further south of Oatman:
Google Maps
One mile south of that would be here, right where the red pin is, at a dirt road heading west:
Google Maps
You are right about there not being much in this area. The only interesting man-made attraction between Oatman and Golden Shores (a town near the Topock Marsh Lake) happens to be a private patriotic statue off the the
dirt road opposite mile marker 21:
https://www.route66news.com/2011/09/11/man-builds-veterans-monument-near-oatman/
"The memorial is just off Route 66, about 1.5 miles south of Boundary Cone Road. The dirt road leading to the memorial is on the right going south, almost directly across from mile marker 21."
Two notes about the above veterans monument quote: "Boundry Cone Road" (that's what it's called on the street sign that is up) is called "Oatman Road" on google maps (CR-155), and Oatman Highway is also labelled at Route 66, as it is part of the original Route 66, though county-maintained. (The "official" state-maintained part of Route 66 in Arizona is east of Kingman.)
I hope LE seriously looked at why Richard was on the land at that location. I think it is important.