A little word-to-the-wise on ghost-towns, to begin with: It's gotten to where .... ANY of those glitzy "text book" type ghost towns are probably the LAST place you'd want to go anyhow. Any one that's got those still-standing buildings, that's of the touristy nature, have either been hunted to death, or ... as said .... going to be sticklers for ability to access anyhow.
Years ago I gathered up various "Ghost towns" books, and went through Arizona and New Mexico, to go sight-seeing and detect at all those glamorous spots. You know, those caliber books like "Sunset Home & Garden's Ghost towns of the Southwest", and other such motorhome enthusiasts tourist guide books. Invariably any of them in the books are just gussied up tourist traps, or historic preserves (Bodie, etc...). And to the extent that a few we found that were ... in fact ... remote (where you could get away with swinging the detector), we discovered that since those books had come out in the 1960s and early 1970s, that they had since then become veritable JUNK HEAPS and nothing remained ('cept a few foundations, etc...). Those books apparently draw spectators, bottle diggers, campers etc.... for decades now. So it was plain to see that they'd been over run with partyers, hunters shooting target practice (thus modern junk and bullet shells everywhere), and bottle pits EVERYWHERE evidencing that scores of other TH'rs had already been there.
So we learned REAL fast to throw out those books, and AVOID any such place that's too easy like that to go to easy books on. Instead, we researched for places that were NOT easy knowledge. For example, stage stops that are nothing there to be seen now (cross-roads out in the desert at various mileage intervals, of which there's nothing left to be seen now, and thus not in books like those tourist-type things). Or ruins out in the mountains we had to hike to, yet with no mention in books, etc.. Only THEN did we find spots worth detecting at, which had not been over-run by partyers, campers, hunters, etc....