Flat-bottom boats are a type of vessel that have a flat bottom and usually a shallow draft, making them ideal for navigating shallow waters. Dories, SCOWS, and barges are all examples of flat-bottom boats. Dories are small, open boats with pointed ends that are often used for fishing. SCOWS are large, flat-bottomed boats that are often used for carrying cargo. Barges are large, flat-bottomed boats that are often used for transporting goods on rivers and canals.