- Laurentian Mountains
Geobox|Range
name=Laurentian Mountains
image_size=275
image_caption=The Laurentian Mountains in the Hautes-Gorges Quebec national park, Charlevoix, Quebec, Canada.
country=Canada
region=Quebec|region_type=Province
highest=Mont Raoul Blanchard
highest_elevation_imperial=3825
highest_lat_d=
highest_lat_m=
highest_lat_s=
highest_lat_NS=
highest_long_d=
highest_long_m=
highest_long_s=
highest_long_EW=
geology= | period=Tonian | orogeny=Grenville orogeny
map_size=275TheLaurentian Mountains (French: "Laurentides") are amountain range in southernQuebec ,Canada , north of theSt. Lawrence River andOttawa River , rising to a highest point of 1166metre s (3,825 feet) atMont Raoul Blanchard , north east of Quebec City in the Réserve Faunique des Laurentides. The Gatineau, L'Assomption, Lièvre, Montmorency, Nord and St. Maurice rivers are sourced from lakes in this mountain range.As a part of the Canadian (Precambrian) Shield, the Laurentians are a part of the same geologic formation as the
Adirondack Mountains in New York State, although the Adirondacks are sometimes included with theAppalachian Mountains .Note that although one of Quebec's official regions is called Laurentides, the mountain range runs through four other regions;
Capitale-Nationale , Outaouais,Lanaudière , andMauricie . The foothills of the Laurentian range extend intoNortheastern Ontario , particularly towardsBonnechere, Ontario as theLaurentian Highlands ,Madawaska Highlands , a range of hills near the Madawaska River andOpeongo Lake , and theOpeongo Hills (another range of high hills, near Round Lake) in Ontario near the town of Combermere.The Laurentian Mountain range is one of the oldest mountain ranges in the world. It contains rocks deposited during
Cambrian time, 540 million years ago. [ Encyclopedia Britannica " [http://concise.britannica.com/ebc/article-9369832/Laurentian-Mountains] ", "Encyclopædia Britannica",© 2007. Retrieved onMarch_9 ,2007 ] . Laurentian are the central part of theGrenville orogeny 1100-1000 mya (million years) ago.References
ee also
*
Laurentian Highlands
*Opeongo Hills
*Adirondack Mountains
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