Ohio Metal Detecting

I have been amazed that my two oldest coins have come from "hunted out" public parks.  These are parks where I regularly see other detectorists.  There was even another person's plug a few feet away from when I dug this coin.  And this is an area of the park I had been over many, many times over the years.  This 1820 large cent is now the oldest coin I have found while metal detecting.  It is in poor condition, but the date is clear.  This is also surprisingly, the first large cent I have found.