A river bateau. Bateaux were rudely constructed of logs and planks, broad and without a keel. They had small draught, and would carry large loads in quite shallow water. In still water and against currents they were propelled by long driving-poles. The ferry-scows or flats on the southern and western rivers are very much like the old bateaux. They were sometimes furnished with a mast for lakes and other deep water, and had cabins erected on them.