One of the more famous PRR secondary lines ran from Williamsport in Pennslyvania to Sodus Point on Lake Ontario. It had a branch to Canandaigua and there was pullman service to Canandaigua I think well into the 1950s. This was the Elmira branch and there is nice magazine size book about it written many years ago. It ran up through Elmira with a shorts section of trackage rights on the Erie (I think) and on up along Seneca Lake through Watkins Glen.
I don't think the steam turbine ever got up there, but lots of I1 2-10-0s ran up there with coal trains to the lake and also M1/M1a 4-8-s with general freight. Also the various consolidations and smaller power.