The Rochester and Southern Railroad (reporting mark RSR), a subsidiary of Genesee & Wyoming Inc., is a class III shortline that runs from the city of Rochester in Monroe County to Silver Springs, NY. The RSR started in 1986, when the B&O sold off its Buffalo and Rochester branches. The trackage was purchased by Genesee & Wyoming Inc., and split into two railroads, the Buffalo and Pittsburgh Railroad and the Rochester and Southern Railroad. The Rochester branch was scrapped from Silver Springs south to Machias, New York.