I finished up that park today. The guys at work laughed at me when i told them i was going to start doing this. I was told that the old timers had rid the parks of all the siver and gold and left the junk. They might be right! The only thing I found notable were 3 Wheats and a really nice 1 hitter lol. But...if they left this much clad in the other 6 parks my detector will have paid for itself in no time