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Lake Ontario Three Mile Bay Boat Ramp

Three Mile Bay Waterway Access Site offers a single-lane concrete boat launch with a floating dock on Lake Ontario's Chaumont Bay, located on State Route 12E in Jefferson County.

The facility provides parking for six vehicles with trailers plus nine additional vehicles, making it suitable for both fishing and recreational boating access to Lake Ontario.


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Find excellent fishing spots, easy access to boat ramps, and all the amenities you need for a memorable day. Your adventure starts here.

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