Daddyd2x, think about the scope of the question your asking: There's scores of different levels/entities of land. Federal, state, counties, and then cities. Right? And within each of THEM, is various sub-levels/types too. So think about how many municipalized cities there are in Nevada, for instance, or CA, etc... and you begin to get a scope of the impossibility of assembling such a list.
The best that has ever been attempted, was that several persons and entities over the years, have attempted to do so on the state parks levels. Because, afterall, there's only 50 states, right? haha The answers they compiled would only have to do with state PARKS though, and doesn't necessarily mean all state land within that state. Because, not all stand land is state
parks land afterall
2 examples of the state-by-state attempt would be: a) R.W. "doc" Grim's book "Treasure Laws of the United States". First came out in the mid 1980s, and I think there were attempted updates after that. b) the currently available FMDAC state by state list (you can get from their website).
But the danger of trying to compile such listings, can be seen when such attempts as those were first done. And this "danger" would simply manifest itself further down the chain (to city and county levels) if anyone ever attempted it. And here was the bugaboo:
When Grim (and subsequent efforts like the FMDAC effort) made their lists, guess how they went about their task? They simply asked. Like Grim, for example, sent out 50 xeroxed letters, to all 50 states state capitol's park's dept. head pencil-pushers, and asked. To the effect of "
what are the laws regarding the use of metal detectors in your state's parks?". Sounds reasonable enough, eh? Who better to ask than the entity themselves afterall, eh?
But a lot of "no's" or, at least, dire sounding rules morphed to fit the question came back to Grim for his book. And you had old-timers back then, scratching their heads, saying to themselves "since when?". Because you see, in a lot of those state's with dire-sounding answers, detecting had often time simply never been a problem (so long as you weren't snooping around obvious historic monuments). But now you had this book saying "no" or some sort of restrictions and such ? Do you see what happened? The "pressing question" gets bandied back and forth in state capitol, between multiple desks (one desk of which will no doubt be an archie), and then ... joy of joys, guess what the easy answer is going to be ? See how that works? And oddly, some of those state's parks, to this day, I have no doubt you can STILL detect, despite dire sounding wording, as things that got penciled in the answers historically just don't get applied to beaches (are deemed to mean land sites only) and ... thankfully no one's gone "seeking clarification" on that, I guess.
Hence to answer your question: no, no such list exists below the state park's levels.
Your best bet is to look up the rules/laws/codes, for whatever city or county lands you have in mind. Look them up for yourself. Usually available on their web-site, or in binder form at city hall, etc... If you see nothing there that says "no metal detecting", then presto, it's not prohibited.
