Went to a site last Saturday that I've been wanting to hunt for some time, but only had about 45 minutes. The only thing I found worth while was the heavily corroded 1944D Mercury. The site looked promising so I went back last Wednesday and found the other three Mercury dimes (1937, 1939D, & 1943S) and ten wheaties (1935 to 1949). All the wheats and mercs were only 1-4 inches deep - shallow enough for any detector to find. I'm not positive but I think I may have stumbled onto a virgin site. I can't imagine that these 14 coins would be missed if the area had been hunted before. Unfortunately, I haven't had time to go back, but you can bet I will.