Patapsco Valley State Park extends along 32 miles of the Patapsco River and offers a variety of outdoor recreational activities. The valley and its natural resources have been enjoyed by the Native Americans, explorers, settlers, and present-day citizens and contains lots of history. This route is a beautiful hike in the scenic Hilton and Orange Grove areas of the park with several waterfalls, scenic views, and a visit to the ruins of old St. Mary’s Seminary.