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310 miles

St. Lawrence River

Draining Lake Ontario, the St. Lawrence threads the Thousand Islands past Clayton and Alexandria Bay, then forms the New York-Ontario border past Ogdensburg and Massena before crossing Quebec to the Atlantic.

N10 mi
Course of the river, simplified. Orange dots are boat ramps and launches, blue squares are bait shops. Map data © OpenStreetMap contributors and the U.S. Geological Survey.

Weather at the St. Lawrence River (National Weather Service) ↗

River facts

Length310 miles
SourceOutlet of Lake Ontario near Kingston, Ontario and Cape Vincent, New York
MouthGulf of St. Lawrence, Quebec
StateNew York

The St. Lawrence Seaway's locks and canals, opened in 1959, carry ocean ships upriver.

Boat ramps and launches

Orange dots on the map. Tap a name to open it in Google Maps. Public ramps and launches along the St. Lawrence River in New York, from OpenStreetMap. The list may be incomplete, so check the state wildlife agency for current access.

Bait shops

No bait shops are mapped near this river yet. Search Google Maps for bait shops near the St. Lawrence River ↗

Fishing regulations

Check the state agency for river-specific rules, seasons and limits before you fish:

Facts from St. Lawrence River (Wikipedia) ↗ · Boat ramps and bait shops: OpenStreetMap contributors · River course: U.S. Geological Survey

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View on interactive map

Zoom and pan on a street, satellite or terrain map to follow the river past roads and towns. Red pins are boat ramps and launches; blue pins are bait shops. Tap a pin for directions.