Department of Environmental Conservation

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Grass Lake

Physical Features:

Elevation: 322 feet
Area: 324 acres
Shoreline Length: 6.8 miles
Max Depth: 55 feet
Mean Depth: 15.4 feet
County & Town: St. Lawrence County, Town of Rossie


DEC beach launch site off Butler Road in the Town of Rossie. 10 hp limit.

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

Fish Species:

Largemouth Bass, Smallmouth Bass, Tiger Muskellunge, Northern Pike, Walleye, Yellow Perch, Bluegill, Brown Bullhead


Grass Lake has an abundance of angling opportunities. Largemouth bass, northern pike and tiger musky can be found in the shallow weedy area along the North shore and in the southern arm of the lake. The northeastern basin is deep and harbors nice smallmouth bass and occasional walleye. Panfish tend to be numerous and stunted but are great forage for the other sportfish.


Special Fishing Regulations Apply.

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