Which was built first, Union Canal or Columbia Canal?
Union Canal (Pennsylvania): The Union Canal was a towpath canal that existed in southeastern Pennsylvania in the United States during the 19th century. Columbia Canal: The Columbia Canal is the surviving canal of a series of canals built by the State of South Carolina in 1824 using the labor of indentured Irishmen to provide direct water routes between the upstate settlements and the towns on the fall line.
Union Canal