[1][2] FGLK main route runs from Syracuse to Canandaigua, New York over a distance of 76 miles.

The FGLK operates a portion of the ex-Lehigh Valley Railroad mainline from Geneva to Kendaia, running south on the east side of Seneca Lake.

The now-closed base has a very large yard which at current time is used for rail car storage by the Finger Lakes Railway.

To get to this line, the Finger Lakes Railway uses trackage rights over Norfolk Southern's Corning Secondary from Geneva to Himrod Junction, which is in the middle of the branch, from Penn Yan in the north to Watkins Glen, New York in the south.

It consists of 13.3 miles (21.4 km) of ex-Lehigh Valley trackage that was part of the Sayre-Buffalo mainline that also makes up the Kendaia branch.

The main cargo includes plastic, canned food, clay, grain, lumber and paper products, scrap steel, chemical substances, finished steel, salt, sand, soda ash, paper, potash, fertilizer, beer, phosphorus fertilizer, telephone poles and aluminum ingots.

The FGLK once operated a passenger excursion service, The Finger Lakes Scenic Railway, as a heritage railroad.