Google is your friend. A search of PD guide services in the state you are looking at should turn up some.
It is doubtful that anyone will give up their favorite location. I made the mistake of taking a friend to my "secret" ground squirrel shooting location, with the promise from him that he would not divulge the location to anyone else, within a couple of years it was over run with shooters because he had told a friend about it - who told a friend about it - who had told a friend about it - well, you get the idea.
Good luck in your search.
drover
