Later the line became absorbed into the Pennsylvania Railroad and became known as the Conemaugh line. It became an alternative freight line to Pittsburgh. The Pennsylvania Railroad operated no scheduled passenger service on the line east of Freeport. If a passenger were operated across the line it would have been a special excursion. Or, the passenger train may have been a special operation routed over the Conemaugh Line in order to avoid an operational problem on the mainline such as a rerailment. There was no scheduled passenger service over the line.
The Conemaugh line has a ruling grade of only .04 per cent. From that standpoint, it has a more favorable ruling grade than the mainline from Pittsburgh to Bolivar, PA.
Access to the Conemaugh line was once possible from Pittsburgh on the east side of the Allegheny River over the Allegheny Valley Railroad built to Oil City, Pennsylvania. When the Pennsylvania Railroad gained control and ownership of the Allegheny Valley Railroad the line became know as the Allegheny Branch. The access from the Allegheny Branch was made at Kiski Junction on the east bank of the Allegheny River across the River from Freeport, PA.
As the former Allegheny Branch is now a truncated independent short line company, the Conemaugh Line can be reached from the Pittsburgh Amtrak Station (milepost 353) using the "Brilliant" Branch that crosses the Allegheny River reaching the Conemaugh Line at Aspinwall (milepost 71 - Conemaugh Line) on the west side of the Allegheny River. The Brilliant Branch's connection with the mainline is at milepost 347.8
The Conemaugh Line follows the Allegheny River to Freeport, PA. At Freeport the Allegheny is bridged to the Kiski Junction described and from there the Conemaugh Line proceeds east along the Kiskiminetas River upstream to its formation at the confluence of the Loyalhanna River and the Conemaugh River at Saltsburg, PA.
The length of the Conemaugh Line from its connection with the mainline at the Northside of Pittsburgh at Federal Street to Bolivar is 78 miles. The distance from the Pittsburgh Amtrak Station to Bolivar is 59 miles.
Shown is the connection with the mainline in blue with the Conemaugh Line ( yellow) at federal Street on the Northside of Pittsburgh. The Pittsburgh Amtrak Station (MP 353) is in the lower right hand corner.