The Pittsburgh, Allegheny and McKees Rocks Railroad (reporting mark PAM) is a switching railroad that serves industrial complexes in McKees Rocks, Pennsylvania. It formerly served the Baltimore and Ohio Railroad (former Pittsburgh and Western Railway) yard across the Ohio River via a car ferry service, operated with the steamboat "Steel Queen".
- ^ American Iron and Steel Institute (1916). Directory of Iron and Steel Works of the United States and Canada. p. 266.