Auburn Valley State Park
Visit the Auburn Heights Preserve in Yorklyn, Delaware, and learn about the dawn of the automotive age and the technology of historic steam transportation! View the world's largest operating collection of Stanley steam cars housed in the 6,000 square foot Marshall Steam Museum! Take a tour of the Auburn Heights Mansion, the Marshall family home and carriage house listed on the National Register of Historic Places. Enjoy the vintage train collection and take a ride along the Aubu Valley Railroad built in the 19th century that still encircles the estate! Enjoy a fun, enlightening experience for all ages!