This American railroad system was built in March 1879 through the merger of the
narrow gauge Pittsburgh Southern Railroad (which was the
narrow gauge Pittsburgh, Castle Shannon and Washington Railroad from July 1877 to April 1878),
Pittsburgh Railroad, and
Washington Railroad. It ran from
Washington to
Castle Shannon, where it connected to the
Pittsburgh and Castle Shannon Railroad. An attempt to use the
Little Saw Mill Run Railroad as a substitute connection to Pittsburgh using
dual gauge track led to the Castle Shannon Railroad War of 1878. In 1883, it was
converted to . After a year, it was purchased by the
Baltimore and Ohio Railroad on November 20, 1884, and they reorganized them as the
Baltimore & Ohio Short Line Railroad. ==References==