A flat bottom boat is a type of vessel that has a flat bottom and is used for transportation, fishing, and other activities. The two most common types of flat bottom boats are scows and barges. A scow is a flat-bottomed boat with a blunt bow and a square stern, typically used for carrying cargo or dredging. A BARGE is a large, flat-bottomed boat used for transporting goods, materials, and passengers on canals and rivers.