The Laurentian Mountains ( French: ''Laurentides'') are a

mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arise ...

in southern

Quebec Quebec ( ; )According to the Canadian government, ''Québec'' (with the acute accent) is the official name in Canadian French and ''Quebec'' (without the accent) is the province's official name in Canadian English is one of the thirtee ...

, Canada, north of the

St. Lawrence River The St. Lawrence River (french: Fleuve Saint-Laurent, ) is a large river in the middle latitudes of North America. Its headwaters begin flowing from Lake Ontario in a (roughly) northeasterly direction, into the Gulf of St. Lawrence, connecting ...

and

Ottawa River The Ottawa River (french: Rivière des Outaouais, Algonquin: ''Kichi-Sìbì/Kitchissippi'') is a river in the Canadian provinces of Ontario and Quebec. It is named after the Algonquin word 'to trade', as it was the major trade route of Eastern ...

, rising to a highest point of at

Mont Raoul Blanchard Mount Raoul Blanchard (french: Mont Raoul-Blanchard) is the highest peak in the Laurentian Mountains, Quebec, Canada at . It is located in the La Côte-de-Beaupré Regional County Municipality, Quebec, La Côte-de-Beaupré RCM, north east of Quebe ...

, northeast of Quebec City in the

Laurentides Wildlife Reserve Réserve faunique des Laurentides (), also known by its former name of parc des Laurentides, is a wildlife reserve in Quebec, Canada, located between Quebec City and the Saguenay–Lac-Saint-Jean region. This reserve is part of the network of ...

. The

Gatineau Gatineau ( ; ) is a city in western Quebec, Canada. It is located on the northern bank of the Ottawa River, immediately across from Ottawa, Ontario. Gatineau is the largest city in the Outaouais administrative region and is part of Canada's N ...

L'Assomption L'Assomption () is an off-island suburb of Montreal, in southwestern Quebec, Canada on the L'Assomption River. It is the seat of the Regional County Municipality of L'Assomption. It is located on the outer fringes of the Montreal urban area. ...

, Lièvre, Montmorency, Nord and St. Maurice rivers rise in lakes in this mountain range.

Background

Although

Laurentides The Laurentides () is a region of Quebec. While it is often called the Laurentians in English, the region includes only part of the Laurentian mountains. It has a total land area of and its population was 589,400 inhabitants as of the 2016 Cens ...

is one of Quebec's official regions, the mountain range of the same name runs through six other regions:

Capitale-Nationale Capitale-Nationale (; en, National Capital region) is one of the 17 List of Quebec regions, administrative regions of Quebec. It is anchored by the provincial capital, Quebec City, and is largely coextensive with that city's Communauté métropol ...

Outaouais Outaouais (, ; also commonly called The Outaouais) is a region of western Quebec, Canada. It includes the city of Gatineau, the municipality of Val-des-Monts and the Papineau region. Geographically, it is located on the north side of the Ottaw ...

Lanaudière Lanaudière (, ) is one of the seventeen administrative regions of Quebec, Canada, situated immediately to the northeast of Montreal. It has a total population ( 2016 Census) of 494,796 inhabitants, an increase of 4.9% over the 2011 census. Geog ...

, Mauricie, Saguenay-Lac-Saint-Jean and

Côte-Nord Côte-Nord (, ; ; land area ) is the second-largest administrative region by land area in Quebec, Canada, after Nord-du-Québec. It covers much of the northern shore of the Saint Lawrence River estuary and the Gulf of Saint Lawrence past Tadous ...

. Extending into central Ontario, the foothills of the Laurentian range are known as the

Opeongo Hills The Opeongo Hills (sometimes called the Opeongo Mountains or Madawaska Highlands, particularly for the easternmost hills) are a range of hills in Southern Ontario, near Algonquin Provincial Park. The hills stretch from Opeongo Lake in Algonquin P ...

, or the Madawaska Highlands. The Laurentian Mountain range is one of the oldest mountain ranges in the world. It contains rocks deposited before the

Cambrian The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million ...

Period 540 million years ago.Laurentian Mountains
at ''

Encyclopædia Britannica The (Latin for "British Encyclopædia") is a general knowledge English-language encyclopaedia. It is published by Encyclopædia Britannica, Inc.; the company has existed since the 18th century, although it has changed ownership various time ...

'' The Laurentians are the central part of the

Grenville orogeny The Grenville orogeny was a long-lived Mesoproterozoic mountain-building event associated with the assembly of the supercontinent Rodinia. Its record is a prominent orogenic belt which spans a significant portion of the North American continent, f ...

dating back to around a billion years.

References

Mountain ranges of Quebec Mountain ranges of Canada Summits of Laurentides Laurentides Wildlife Reserve {{Quebec-geo-stub

Background

See also

References