Man, go to the county courthouse an see if you can get an old map of the property (should be publicly available) and see if you can find the outhouse location, an old bottle digger I used to hang out w/ that's basically all he dug, we used steel rods he pushed into the ground till he hit something then we dug. Anything and everything they had in their pockets fell into that outhouse hole including marbles, money, old whiskey bottles etc.. a gold mine if nobody has dug it yet ??