1862 Antietam Campaign

Historical marker location:

154 West Patrick Street, Frederick, Maryland

( Marker is on West Patrick Street (State Highway 144), on the left when traveling west.)

Lee Invades Maryland.

Maryland was home to one of the first railroads in the United States: The Baltimore and Ohio Railroad, which was founded in 1827, was one of the first railroads in the United States. It played a crucial role in the transportation of goods and people, and helped make Baltimore an important hub for commerce and industry.