Department of Environmental Conservation

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Lake Bonaparte

Physical Features:

Elevation: 768 feet
Area: 1,248 acres
Shoreline Length: 11.9 miles
Max Depth: 75 feet
Mean Depth: 31 feet
County & Town: Lewis County, Town of Diana


DEC hard surface ramp west of the Village of Harrisville, 3.5 miles north off Route 3 on North Shore Road.

For more information on this launch including Google Maps driving directions, visit the Boat Launch Sites for Lewis County page.

Fish Species:

Smallmouth Bass, Northern Pike, Brown Trout, Yellow Perch, Brown Bullhead, Cisco.


Lake trout and brown trout are present in small numbers and may be taken in open water or by ice fishing. The most common angling targets are northern pike, largemouth bass or panfish. Northern pike up to 25" and large or smallmouth bass up to 18" are reasonably common. Around 2,500 brown trout and 800 lake trout are stocked annually.

Ice Fishing:



Special Fishing Regulations Apply.

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