The Back Barn/Smokehouse is the stone and frame utility shed located behind the house.  It measures about 18 feet by 48 feet and was built as a multi-purpose building. It features a one-story privy at one end, a two-story section with a bell tower and cupola in the middle and a stone smokehouse at the other end.   In addition, a man-made cave extends approximately sixty-five feet from the ground level of the Back Barn/Smokehouse into the hillside.