The rivière du Lac (''English: River of the lake'') is a tributary of the west bank of the
Montmorency River
The Montmorency River () is a tributary of North-East bank of St. Lawrence river, flowing in the administrative region of Capitale-Nationale, in the provinces and territories of Canada, province of Quebec, Canada. The course of the river successiv ...
. This watercourse flows on the north shore of the
St. Lawrence River
The St. Lawrence River (, ) is a large international river in the middle latitudes of North America connecting the Great Lakes to the North Atlantic Ocean. Its waters flow in a northeasterly direction from Lake Ontario to the Gulf of St. Lawren ...
, in the city of
Quebec
Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares borders with the provinces of Ontario to the west, Newfoundland and Labrador to the northeast, ...
, in the administrative region of
Capitale-Nationale
Capitale-Nationale (; ) is one of the 17 administrative regions of Quebec. It is anchored by the provincial capital, Quebec City, and is largely coextensive with that city's metropolitan area. It has a land area of 18,684.78 km2. It reported ...
, in the
province
A province is an administrative division within a country or sovereign state, state. The term derives from the ancient Roman , which was the major territorial and administrative unit of the Roman Empire, Roman Empire's territorial possessions ou ...
of
Quebec
Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares borders with the provinces of Ontario to the west, Newfoundland and Labrador to the northeast, ...
, in
Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
.
This valley is mainly served by the Lac-des-Roches road which passes on the north bank of this watercourse. Forestry is the main economic activity in this valley; second resort; agriculture (in the lower part around the village of Côte-du-Lac), third.
The surface of the Lac river is generally frozen from the beginning of December until the end of March; however, safe circulation on the ice is generally done from mid-December to mid-March. The water level of the river varies with the seasons and the precipitation; the spring flood occurs in March or April.
Geography
The "rivière du Lac" rises at the confluence of two forest streams (altitude: ), ie:
* south of the summit of
Mont Saint-Louis;
* south-west of the confluence of the Lac river and the
Montmorency River
The Montmorency River () is a tributary of North-East bank of St. Lawrence river, flowing in the administrative region of Capitale-Nationale, in the provinces and territories of Canada, province of Quebec, Canada. The course of the river successiv ...
;
* north-east of the summit of
Mont des Épinettes Noires;
* east of
Beauport Lake;
* west of the northwest shore of the
St. Lawrence River
The St. Lawrence River (, ) is a large international river in the middle latitudes of North America connecting the Great Lakes to the North Atlantic Ocean. Its waters flow in a northeasterly direction from Lake Ontario to the Gulf of St. Lawren ...
.
Course of the Lac river
From its source, the Rivière du Lac descends in a valley between the mountains, first in forest territory, on , with a drop of , according to the following segments:
* towards the east crossing the Lac du Chemin de l'Aqueduc (length: ; altitude: ), to the dam at its mouth;
* to the east crossing a small unidentified lake (length: ; altitude: ) which receives from the side south Sainte-Marie brook, to its mouth;
* towards the east by forming a curve towards the north to go through the village of Côte-du-Lac, to its mouth.
[Atlas of Canada - Department of Natural Resources Canada - Rivière du Lac - Distance and altitude measurements based on application of site measurements.]
/ref>
From the confluence of the Lac river, the current flows over generally towards the south by the course of the Montmorency River
The Montmorency River () is a tributary of North-East bank of St. Lawrence river, flowing in the administrative region of Capitale-Nationale, in the provinces and territories of Canada, province of Quebec, Canada. The course of the river successiv ...
, up to the northwest bank of the St. Lawrence River
The St. Lawrence River (, ) is a large international river in the middle latitudes of North America connecting the Great Lakes to the North Atlantic Ocean. Its waters flow in a northeasterly direction from Lake Ontario to the Gulf of St. Lawren ...
.[
]
Toponymy
The toponym "rivière du Lac" derives from the fact that this watercourse crosses the "Lac du Chemin de l'Aqueduc". A dam has been built at the mouth of this lake.
The toponym "Rivière du Lac" was formalized on December 5, 1968 at the Place Names Bank of the Commission de toponymie du Québec
The Commission de toponymie du Québec (, ''Toponymy Commission of Québec'') is the Government of Québec's public body responsible for cataloging, preserving, making official and publicizing Québec's place names and their origins according to th ...
.Commission de toponymie du Québec - Bank of Place Names - Toponym: "Rivière du Lac"
/ref>
See also
* Quebec (city)
Quebec City is the capital city of the Provinces and territories of Canada, Canadian province of Quebec. As of July 2021, the city had a population of 549,459, and the Census Metropolitan Area (including surrounding communities) had a populati ...
, a city
* Capitale-Nationale
Capitale-Nationale (; ) is one of the 17 administrative regions of Quebec. It is anchored by the provincial capital, Quebec City, and is largely coextensive with that city's metropolitan area. It has a land area of 18,684.78 km2. It reported ...
, an administrative region
* Montmorency River
The Montmorency River () is a tributary of North-East bank of St. Lawrence river, flowing in the administrative region of Capitale-Nationale, in the provinces and territories of Canada, province of Quebec, Canada. The course of the river successiv ...
* St. Lawrence River
The St. Lawrence River (, ) is a large international river in the middle latitudes of North America connecting the Great Lakes to the North Atlantic Ocean. Its waters flow in a northeasterly direction from Lake Ontario to the Gulf of St. Lawren ...
* List of rivers of Quebec
This is a list of rivers of Quebec. Quebec has about:
*One million lakes, of which 62279 have a toponymic designation (a name), plus 218 artificial lakes;
*15228 watercourses with an official toponymic designation, including 12094 streams and 313 ...
Notes and references
{{DEFAULTSORT:Lac, rivière du
Rivers of Capitale-Nationale