Cayuga Lake is a Finger Lake in central New York, spanning Cayuga, Seneca and Tompkins counties. It is the longest of the Finger Lakes at just under 39 miles, about 435 feet deep at its deepest point, with more than 95 miles of shoreline. The lake takes its name from the Cayuga people of the Haudenosaunee Confederacy. Ithaca sits at its southern end, Seneca Falls at its northern tip, and it connects to Lake Ontario through the Erie Canal.