Conestoga wagon, horse-drawn freight wagon that originated during the 18th century in the Conestoga Creek region of Lancaster county, Pennsylvania, U.S. Ideally suited for hauling freight over bad roads, the Conestoga wagon had a capacity of up to six tons, a floor curved up at each end to prevent the contents from shifting inside, and a white canvas cover to protect against bad weather; it was pulled by four to six horses.
A descendant of the Conestoga wagon was the prairie schooner, used by the pioneers to transport their possessions westward. Named for its white canvas top, which at a distance made it resemble a sailing ship, the prairie schooner had a flat body and lower sides than the Conestoga wagon.