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Lake St. Lawrence

Boat Ramps
9
Access Points
0
Species
29

Lake St. Lawrence is a reservoir located along the St. Lawrence River in eastern Ontario, Canada, formed by the construction of the Moses-Saunders Power Dam as part of the St. Lawrence Seaway project. Stretching through a scenic landscape of islands, bays, and flooded shorelines, it offers a diverse and productive fishery that draws anglers from across the region. The lake is managed in partnership with the St. Lawrence Parks Commission and the Kemptville District of the Ontario Ministry of Natural Resources, ensuring a balance between recreational use and conservation. With its mix of shallow flats, deeper channels, and varied structure, Lake St. Lawrence provides excellent opportunities for both shore anglers and those fishing from boats.


Fishing spots, boat ramps & amenities

Learn how to get on Lake St. Lawrence. Uncover great fishing access points, boat ramps, and all the facilities you need for an unforgettable day on the water. Some locations shown may border or include private property. Always check property boundaries and applicable regulations before visiting. onWater's Public & Private Land layer can help you plan your access with confidence.

Know where you can legally fish on Lake St. Lawrence

See public and private land boundaries along the water, turn on private parcels with owner details to know where permission is required, and find land-trust parcels that offer permitted fishing access.

Take Lake St. Lawrence with you

The onWater Fish app keeps this water's access points, species and conditions in your pocket, with the tools you use once you're there.

  • Use the map without signal

    Download the map around Lake St. Lawrence to use it offline when coverage drops.

  • Log your catches here

    Keep a private fishing journal for Lake St. Lawrence to find where and when fish are biting for you.

  • HD depth charts from Garmin

    Find drop offs, ledges, channels, points and shallow flats with Garmin depth charts in the app.

Get the onWater Fish app

Free on iOS and Android

Water and weather conditions (10 day forecast)

See the best times to fish Lake St. Lawrence and check the forecast before you go.

No forecast data available.


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Smarter Fishing Starts in the App.

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