| 2. ||Abner O'Neal at landing, Mandan, N.D. ||Logs; Building materials; Horses; Carts & wagons; Steamboats; Postcards; Mooring; Piers & wharves; Waterfronts; ||A steamboat moored on a wooded shoreline. A horse and wagon is transporting materials just left of center. Workers are following the wagon. In the foreground there are two piles of logs.