Seneca Mill Falls is a scenic 40-feet waterfall adjacent to the ruins of a factory between Penn Yan and Dresden, New York.
The waterway is paralleled with an abandoned New York Central railroad that was converted into the Keuka Lake Outlet Trail, open to cyclists and pedestrians. It meanders between Penn Yan and Dresden and at one point, enters one of the 27 locks that serviced the long-disused Crooked Lake Canal.
At Seneca Mills is the abandoned paper factory, dam, and a Crooked Lake Canal lock.
From Penn Yan, follow Outlet Road east of the city for 2.7 miles. At its terminus with Ridge Road will be a parking area for the Keuka Lake Outlet Trail. Park and walk or bike the trail for .8 mile west.
From Dresden, follow NY Route 54 west for 2 miles. Turn left onto Ridge Road and follow for 1.3 miles to the junction with Outlet Road. Pull into the Keuka Lake Outlet Trail parking lot. Park and walk or bike the trail for .8 mile west.