Stretch of Keystone Corridor rail line recogized for role in Underground Railroad

An 1850s passerby would have noticed nothing unusual about the railroad cars. But some trains on a stretch of Pennsylvania track were carrying secret cargo.
Concealed in hidden compartments on trains that hauled lumber from Lancaster City to Philadelphia were slaves seeking freedom.

The cars, owned by three African American businessmen, were part of another "railroad" - the famed Underground Railroad. And now, along with other national sites recognized for their role in that endeavor, the railroad corridor is getting its due.