Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Hanover Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Maryland and Pennsylvania. The line runs from Baltimore, Maryland west to Hagerstown, Maryland along several former Western Maryland Railway lines. It meets the Baltimore Terminal Subdivision at its east end, and the Lurgan Subdivision heads both north and west from its west end. The first section of the Hanover Branch was built was between Porters, Pennsylvania and Hanover, Pennsylvania, opened in 1852 as part of the Hanover Branch Railroad.