I was hunting at an old farm house and located what I believe is the area where the outhouse was located. Actually it was a no-brainer. There was an old walk way to an area that had an approximate 4x4 foot area that had settled about 6 inches below the level of the surrounding area. What is my next move? I have seen others use a long thin steel pole to "explore" if this is indeed an area to be searched. I guess I could always just start digging. Your input please. Thanks