Department of Environmental Conservation

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Cannonsville Reservoir

Physical Features:

Elevation: 1,151 feet
Area: 4,703 Acres
Shoreline Length: 61.1 miles
Length: 12 miles
Max Depth: 121 feet
Mean Depth: 61 feet
Town: Tompkins, Deposit

Aquatic Plant Life:

Limited rooted aquatic vegetation.


Numerous NYC DEP designated boat launches. Majority of shoreline is accessible through NYC DEP land.

Fish Species:

Alewife, Brown Trout, Brook Trout, Chain Pickerel, Common Carp, Golden Shiner, Emerald Shiner, Fallfish, Longnose Sucker, White Sucker, Yellow Bullhead, Brown Bullhead, Margined Madtom, Rock Bass, Pumpkinseed, Smallmouth Bass, Largemouth Bass, Black Crappie, Yellow Perch, Slimy Sculpin


The reservoir is most popular for its brown trout and smallmouth bass fishery. The panfishing can be decent at times. Stocked annually with approximately 6,500-7,000 brown trout 8-9" in length.

Ice Fishing:



Special fishing regulations apply (leaving DEC website to official Fishing Regulations Guide vendor website).

NYC DEP permit required. Row boats only and must be registered and inspected by NYC DEP. No motors allowed.

Visit (leaves DEC website) for more information.