The Conestoga wagon was a heavy covered freight wagon used extensively during the late eighteenth century. Often large enough to carry loads of up to 6 tons, it was drawn by horses, mules, or oxen and was designed to keep its contents from shifting in motion and to help in crossing rivers and streams. Named after the Conestoga River in Lancaster County, Pennsylvania, it is thought to have been introduced by Mennonite German settlers. It had no provision for hauling people, including the driver or teamster, and was capable of hauling 10,000 to 12,000 pounds, with a floor that curved upward to prevent tipping or shifting. Normally six horses pulled it. One surviving example, estimated to have been built in the late 1700s, retains all original parts except the canvas top, remains in operating condition, and is probably one of the best remaining examples of a Conestoga with all original parts and still capable of use today. The Pennsylvania Barn is a two-level forebay bank barn built into the side of a hill or bank so that both upper and lower floors can be reached from ground level. Its overhanging forebay projects over the lower level, while the lower floor was used to stable cattle and other livestock and the upper floor was used to store hay and straw and to thresh grain, with openings that allowed hay and straw to drop below for feed and bedding. This type of forebay bank barn originated in Switzerland, and this example was constructed in 1858.