The Buffalo Southern Railroad operates the portion from Buffalo to the Erie County line at Gowanda, and the New York and Lake Erie Railroad operates the line south from Gowanda to South Dayton, including an excursion train that runs in the summer.
In this context, the Buffalo Southern Railroad is in charge of the Buffalo-Gowanda section, whereas the New York and Lake Erie Railroad oversees the southern part of the line from Gowanda to South Dayton, which includes a seasonal tourist train.