Below is the 1906 inspection report of the Western New York and Pennsylvania Railway, operated since 1900 by the Pennsylvania Railroad. From the introduction:
On August 21, 22 and 23, 1906, I made an inspection of the lines of the Western New York and Pennsylvania Railway in this State and respectfully submit the following report :
The Western New York and Pennsylvania Railway, operated by the Pennsylvania Railroad Company, have in this State the following named lines of railroad :
Buffalo division, including the Union Terminal Railroad in Buffalo, extends from Buffalo to the Pennsylvania State line near White House, a distance of 78.78 miles, and has 16.41 miles of second main track and 96.49 miles of sidings and yard tracks.
Rochester division, extending from Rochester to Hinsdale on the main line of the Buffalo division, a distance of 98.54 miles. It has a freight branch in Rochester considered as main line extending from the Rochester yard to a connection with the New York Central and Hudson River Railroad, a distance of 2.46 miles, and another branch known as Swains branch which connects with the main line at Nunda Junction and extends to Swains on the line of the Pittsburg, Shawmut and Northern Railroad, a distance of 12 miles. The operation of trains over this branch excepting between Nunda Junction and the village of Nunda, about 2.50 miles, has been discontinued for several years. All the lines are single track. There are on this division 30.57 miles of sidings and yard tracks.
The River division extends from a connection with the main line, Buffalo division, at Olean, to the Pennsylvania State line near Wolf Rock, a distance of 38.30 miles, single track and has 47.13 miles of sidings and yard tracks.
The Chautauqua division extends from the Pennsylvania State line near Clymer to a connection with the main line, Buffalo division, in Buffalo, a distance of 85.91 miles, and has 17.66 miles of sidings and yard tracks.
Source: 1906 Report of the New York State Railroad Commissioners