Hi guys , I'm going back to the old homesite 1860s - 1870s house to continue digging. Iv dug about 4 feet or so and it keeps going down its lined with wood and is shaped like a rectangle it's long and a not wide can anyone shed some light on what I'm digging into? I see alit of black dirt and some rust here and There but no bottles . I'll post another video of it later . Thanks -Jake.