This chart is courtesy of the Office of Allegany County Clerk, Robert L. Christman, County Clerk. It shows a chronology of the development of the Pittsburg, Shawmut & Northern Railroad. Mr. Christman notes that the Clerk's office, in Belmont, N.Y., has "the complete set of railroad surveys/maps on file.  They are awesome. The public is encouraged to come down and check them out.  They are on display on the big tables in the Clerk’s office. We have digitized the majority of the railroad maps that crossed Allegany County. "

To see a larger version of the chart, just click on the image.

Pittsburg Shawmut and Northern Chronological Chart