Title: St. Lawrence River
Content:  The St. Lawrence River is a large river in the middle latitudes of North America, flowing from Lake Ontario in a roughly northeasterly direction into the Gulf of St. Lawrence, connecting the Great Lakes to the North Atlantic Ocean and forming the primary drainage outflow of the Great Lakes Basin. The river traverses the Canadian provinces of Ontario and Quebec as well as the U.S. state of New York, and is part of the international boundary between Canada and the United States. It also provides the basis for the commercial St. Lawrence Seaway.
Title: St. Lawrence River
Content:  River is 16800 m3/s. At Quebec City, it is 12101 m3/s. The average discharge at the river's source, the outflow of Lake Ontario, is 7410 m3/s. The St. Lawrence River includes Lake Saint-Louis south of Montreal, Lake Saint Francis at Salaberry-de-Valleyfield and Lac Saint-Pierre east of Montreal. It encompasses four archipelagoes: the Thousand Islands chain near Alexandria Bay, New York and Kingston, Ontario; the Hochelaga Archipelago, including the Island of Montreal and Île Jésus (Laval); the Lake St. Pierre Archipelago (classified biosphere world reserve by the UNESCO in 2000) and the smaller Mingan Archipelago. Other islands include Île d'Orléans near Quebec City and Anticosti Island north of the Gaspé. It is the second longest river in Canada. Lake Champlain 
Title: Lake Saint-Louis
Content:  Lake Saint-Louis is a lake in southwestern Quebec, Canada, at the confluence of the Saint Lawrence and Ottawa Rivers. The Saint Lawrence Seaway passes through the lake. Lake St. Louis is a widening of the St. Lawrence River in the Hochelaga Archipelago. It is also fed by the Ottawa River via the Lake of Two Mountains at Sainte-Anne-de-Bellevue, the Beauharnois Canal, the Soulanges Canal, the Saint-Louis River, and the Châteauguay River. The lake is bounded to the north and the east by the Island of Montreal, by Beauharnois-Salaberry, Roussillon, and Vaudreuil-Soulanges. The town of Beauharnois with its power-dam and canal lie to the south. The West Island shore is mostly built up with private houses, but it includes some parks and clubs such as the Pointe-Claire Canoe Club, and the Pointe-Claire Yacht Club. Islands in the lake include Dorval and Dowker 
Title: St. Lawrence River
Content:  the Ottawa, Richelieu, Saint-Maurice, Saint-François, Chaudière and Saguenay rivers drain into the St. Lawrence. The St. Lawrence River is in a seismically active zone where fault reactivation is believed to occur along late Proterozoic to early Paleozoic normal faults related to the opening of the Iapetus Ocean. The faults in the area are rift-related and comprise the Saint Lawrence rift system. According to the United States Geological Survey, the St. Lawrence Valley is a physiographic province of the larger Appalachian division, containing the Champlain and Northern physiographic section. However, in Canada, where most of the valley is, it is instead considered part of a distinct St. Lawrence Lowlands physiographic division, and not part of the Appalachian division at all.
Title: Estuary of St. Lawrence
Content:  The estuary of the St. Lawrence River is located downstream of the St. Lawrence River and upstream of the Gulf of St. Lawrence. It refers to the place where the fresh and salt waters mix between the river and the gulf. The St. Lawrence Estuary begins at Lake Saint-Pierre and ends at the widening of the shores, at the height of Pointe-des-Monts, Quebec, opposite Les Méchins, Quebec. It is divided into three sections: the St. Lawrence River estuary at Île d'Orléans (Orleans Island), the middle estuary to the Saguenay Fjord, the maritime estuary to Pointe-des-Monts, Quebec. The St. Lawrence Estuary is characterized by a saline front at the eastern tip of Île d'Orléans. The zone of contact between fresh and 
Title: Saint Louis River (Lake Superior tributary)
Content:  The Saint Louis River (abbreviated St. Louis River) is a river in the U.S. states of Minnesota and Wisconsin that flows into Lake Superior. The largest U.S. river to flow into the lake, it is 192 mi in length and starts 13 mi east of Hoyt Lakes, Minnesota. The river's watershed covers 3634 sqmi. Near the Twin Ports of Duluth, Minnesota and Superior, Wisconsin, the river becomes a freshwater estuary. The lower St. Louis is the only river in the state with whitewater rafting opportunities.
Title: St. Lawrence Seaway
Content:  The St. Lawrence Seaway (la Voie Maritime du Saint-Laurent) is a system of locks, canals, and channels in Canada and the United States that permits oceangoing vessels to travel from the Atlantic Ocean to the Great Lakes of North America, as far inland as Duluth, Minnesota, at the western end of Lake Superior. The seaway is named for the St. Lawrence River, which flows from Lake Ontario to the Atlantic Ocean. Legally, the seaway extends from Montreal, Quebec, to Lake Erie, and includes the Welland Canal. The St. Lawrence River portion of the seaway is not a continuous canal; rather, it consists of several stretches of navigable channels within the river, a number of locks, and canals along the banks of the St. Lawrence River to bypass several rapids and dams. A number of the locks are managed by the St. Lawrence Seaway Management Corporation in Canada, and others in the United States by the St. Lawrence Seaway Development Corporation; the two bodies together advertise the seaway as part of "Highway H2O". The section of the river from Montreal to the Atlantic is under Canadian jurisdiction, regulated by the offices of Transport Canada in the Port of Quebec.
Title: Lawrence, St. Lawrence County, New York
Content:  According to the United States Census Bureau, the town has a total area of 47.7 sqmi, of which 47.7 sqmi is land and 0.04 sqmi  (0.06%) is water. The eastern town line is the border of Franklin County. The Deer River flows from the south-east to the north-western part of the town, and the east branch of the St Regis River flows across the southern part of the town. U.S. Route 11 and New York State Route 11C are east–west highways. New York State Route 11B cuts across the southeastern corner of the town.
Title: St. Lawrence, Pennsylvania
Content:  St. Lawrence is located in south-central Berks County at 40.32583°N, -75.8675°W (40.325814, -75.867418). It is bordered by the borough of Mount Penn to the west and by Exeter Township to the north, east, and south. The unincorporated communities of Pennside, Jacksonwald, and Reiffton border the borough on the northwest, east, and south, respectively. According to the United States Census Bureau, St. Lawrence has a total area of 0.9 sqmi, all of it land.
Title: St. Lawrence River
Content:   With the draining of the Champlain Sea, due to a rebounding continent from the Last Glacial Maximum, the St. Lawrence River was formed. The Champlain Sea lasted from about 13,000 years ago to about 10,000 years ago and was continuously shrinking during that time, a process that continues today. Today, the St. Lawrence River begins at the outflow of Lake Ontario and flows adjacent to Gananoque, Brockville, Morristown, Ogdensburg, Massena, Cornwall, Montreal, Trois-Rivières, and Quebec City before draining into the Gulf of St. Lawrence, the largest estuary in the world. The estuary begins at the eastern tip of Île d'Orléans, just downstream from Quebec City. The river becomes tidal around Quebec City. The St. Lawrence River runs 3058 km from 

Question: what body of water does st lawrence river flow into?
Answer: Gulf of Saint Lawrence.