Gilbert River (Cyriac River tributary)

The Gilbert River is a freshwater tributary of the Cyriac River, flowing in the unorganized territory of Lac-Ministuk, in the Le Fjord-du-Saguenay Regional County Municipality, in the administrative region of Saguenay–Lac-Saint-Jean, in the province of Quebec, in Canada.

Gilbert River
Gilbert River (Cyriac River tributary) is located in Quebec
Gilbert River (Cyriac River tributary)
Location
CountryCanada
ProvinceQuebec
RegionSaguenay-Lac-Saint-Jean
Regional County MunicipalityLe Fjord-du-Saguenay Regional County Municipality
Unorganized territory and a cityLac-Ministuk
Physical characteristics
SourceLac Prud’homme
 • locationLac-Ministuk
 • coordinates48°02′37″N 71°15′43″W / 48.04351°N 71.26195°W / 48.04351; -71.26195
 • elevation720
MouthCyriac River
 • location
Lac-Ministuk
 • coordinates
48°05′50″N 71°14′53″W / 48.09722°N 71.24805°W / 48.09722; -71.24805
 • elevation
480 m (1,570 ft)
Length8.4 km (5.2 mi)
Discharge 
 • locationLac-Ministuk
Basin features
River systemSaguenay River

The Gilbert River is accessible by route 175; other secondary forest roads have been developed in the sector for the needs of forestry and recreational tourism activities.[1][2][3]

Forestry is the primary economic activity in the sector; recreational tourism, second.

The surface of the Gilbert River is usually frozen from late November to early April, however safe circulation on the ice is generally from mid-December to late March.

Geography

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The main watersheds adjacent to the Gilbert River are:

The Gilbert River has its source at Prud’homme Lake (length: 0.3 km (0.19 mi); altitude: 720 m (2,360 ft)). The northern mouth of Lake Prud’homme is located at:

From Lac Prud'homme, the course of the Gilbert River generally flows west, then north, over 8.4 km (5.2 mi), with a drop of 240 km (150 mi) entirely in forest areas, according to the following segments:

  • 2.7 km (1.7 mi) towards the west curving towards the north, then crossing a small lake (length: 0.7 km (0.43 mi); altitude: 590 m (1,940 ft)), to its mouth;
  • 1.9 km (1.2 mi) towards the north curving towards the northeast, up to a bend in the river;
  • 1.8 km (1.1 mi) northerly, up to the highway 175 bridge;
  • 0.5 km (0.31 mi) northerly, along the west side of route 175, to a stream (coming from the west);
  • 1.5 km (0.93 mi) towards the northeast, along the west side of route 175, to its mouth.[1]

The Gilbert River flows onto the west bank of the Cyriac River. This confluence is located at:

  • 2.7 km (1.7 mi) east of the southern bay of Lac Cyriac;
  • 8.4 km (5.2 mi) west of the course of the Moulin river;
  • 0.3 km (0.19 mi) east of route 175;
  • 17.1 km (10.6 mi) north-east of route 169;
  • 19.0 km (11.8 mi) north-east of the locality Mont-Apica;
  • 23.0 km (14.3 mi) south-east of the confluence of the Cyriac river and Kenogami Lake;
  • 39.2 km (24.4 mi) south of the confluence of the Chicoutimi River and the Saguenay River.[1]

From the confluence of the Gilbert river with the Cyriac river, the current descends the latter on 34.2 km (21.3 mi) to the north, then the current crosses Lake Kénogami on 6.3 km (3.9 mi) northeasterly to barrage de Portage-des-Roches, then follows the course of the Chicoutimi river on 26.2 km (16.3 mi) eastward, then northeasterly and course of the Saguenay river on 114.6 km (71.2 mi) eastward to Tadoussac where it merges with the Saint Lawrence estuary.[1]

Toponymy

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The toponym “Gilbert River” was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.[2]

Notes and references

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  1. ^ a b c d e "Atlas du Canada du Ministère des ressources naturelles du Canada - Characteristics extracted from the geographic map, database and instrumentation of the site". 12 September 2016. Retrieved December 20, 2019.
  2. ^ a b Commission de toponymie du Québec - Rivière Gilbert
  3. ^ Open Street Map - Accessed January 28, 2019

Appendices

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