Thompson River
Location
CountryCanada
ProvinceQuebec
RegionAbitibi-Témiscamingue
MRCLa Vallée-de-l'Or Regional County Municipality
Physical characteristics
SourceLemoine Lake
 • locationVal-d'Or
 • coordinates48°03′56″N 77°52′34″W / 48.06556°N 77.87611°W / 48.06556; -77.87611
 • elevation296 m (971 ft)
MouthDe Montigny Lake
 • location
Val-d'Or
 • coordinates
48°05′14″N 77°52′41″W / 48.08722°N 77.87806°W / 48.08722; -77.87806
 • elevation
294 m (965 ft)
Length4.9 km (3.0 mi)
Basin features
Tributaries 
 • left(upstream)
 • right(upstream)

The Thompson River is a tributary of the south shore of De Montigny Lake, flowing in the town of Val-d'Or, in the La Vallée-de-l'Or Regional County Municipality, in the administrative region of Abitibi-Témiscamingue, in Quebec, in Canada.

Recreational tourism is the sector's primary economic activity, including pleasure boating on De Montigny lakes, Blouin and Lemoine Lake. This strait includes a marina.[1] (at south of the strait) and a seaplane base (in the middle of the strait). In addition, a railway bridge and a road bridge cross this strait which is located on the west side of the city of Val-d'Or.[2]

The surface of the Thompson River is generally frozen from mid-December to mid-April.

Geography

The neighboring watersheds of the Thompson River are:

  • north side: Harricana River, Lac De Montigny, Milky River;
  • east side: Sabourin Lake, Marrias River, Sabourin River;
  • south side: Lemoine lake, Mourier Lake;
  • west side: Piché River, Fournière Lake.[2]

The source of the Thompson River is located at the mouth of Lemoine Lake (Val-d'Or) which is mainly fed by a strait (from the southwest) connecting it to Mourier Lake.

From its source, the Thompson River flows 4.9 km (3.0 mi) northward forming a navigable strait and collects the waters of the Piché River (coming from the west).[2]

The Thompson River flows on the south shore of Lac De Montigny to:

  • 20.2 km (12.6 mi) south-east of the outlet of the Harricana River in Malartic Lake;
  • 7.8 km (4.8 mi) south of the mouth of Lac De Montigny;
  • 5.8 km (3.6 mi) west of downtown Val-d'Or;
  • 10.2 km (6.3 mi) north-east of Lac Fournière;
  • 1.8 km (1.1 mi) north of the hamlet of Rivière-Thompson.[2]

Toponymy

The toponym Thompson river was formalized on December 21, 1982 at the Commission de toponymie du Québec.[3]

See also

Notes and references

  1. ↑ Marina Thompson de Val-d'Or
  2. 1 2 3 4 "Atlas of Canada by the Department of Natural Resources Canada". Retrieved 12 July 2020. Characteristics extracted from the geographic map, database and instrumentation of the site
  3. ↑ Commission de toponymie du Québec - Rivière Thompson
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