Deep in the heart of the Borough of Queens in New York City, the Long Island Railroad Lower Montauk Branch served as a kind of "back door" access to the stations at Hunterspoint Avenue and Long Island City on the shore of the East River. Lacking the third rail electrification of the LIRR mainline, it was the province of steam, then diesels.
Here an Alco RS-3 brings a westbound mid-day passenger train through Fresh Pond in Queens, which was (and still is) the freight interchange point between the LIRR and the Hell Gate Line which is the only way freight cars can get onto and off of the Island. The train is on the mainline and the nearer tracks are the far end of the interchange yard. Note the three varieties of passenger cars in the train ranging from oldest to newest as one heads rearward.
Passenger service over this particular line was discontinued in 1998, but freight trains still run, now operated by the New York and Atlantic Railroad via trackage rights.