Laurentian Mountains
mountain range in Labrador and Quebec, Canada
The Laurentian Mountains, also known as the Laurentians or Laurentides, are a mountain range in Canada. The range is 1,400 km (900 mi) long and ranges in height from 500 m (1,600 ft) with peaks over 1,000 m (3,300 ft). The Laurentian Mountains extend across Labrador and Quebec within the Laurentian Upland, which contains foothills in northeastern Ontario. The range is located near the rivers of Ottawa, St. Lawrence, and Saguenay. The Laurentian Mountains primarily stretch across multiple regions in Quebec, with geologic formations such as the Jacques-Cartier Massif located within the range.
The Laurentians Mountains are one of the oldest mountain ranges on earth. The range formed around one billion years ago during the Grenville orogeny, in which the Grenville Province formed, a subdivision of the Canadian Shield. During that time, Laurentia, the geologic core of the Canadian Shield, collided with other continents and formed Precambrian rocks which extend across the range. The mountain range is located around other related geographic features, such as the Monteregian Hills and the Adirondack Mountains.
This brief starts where responsible research should: with the source description of “Laurentian Mountains” as mountain range in Labrador and Quebec, Canada. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as mountain range in Labrador and Quebec, Canada. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q75596. Authority coordinates are 47.000, -72.000. None of the 1 selected statements returned an explicit reference.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Laurentian Mountains”, its source revision and the description used here.
- Expand the search: follow Laurentian Mountains primary sources, Laurentian Mountains archive and Laurentian research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Laurentian Mountains”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Laurentian Mountains” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.