Seneca Lake and Cayuga Lake were connected via a canal using the Seneca River in 1818. In 1825, the Erie Canal was completed, and in 1828 the Cayuga-Seneca Canal connected these two largest of the Finger Lakes with the Erie Canal. The areas surrounding these lakes are part of the Erie Canalway National Heritage Corridor.
From 1833 to 1877, Keuka Lake was connected to Seneca Lake via the Crooked Lake Canal (the former name of Keuka Lake) along the Keuka Outlet, connecting Penn Yan at the northern end of the east branch of Keuka Lake with Dresden on the west shore of Seneca Lake.
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