Nepton River (Chibougamau Lake)

The Nepton River is a tributary of Chibougamau Lake, flowing into the Municipality of Eeyou Istchee James Bay, in Jamésie, in the administrative region of Nord-du-Québec, in the province of Quebec, in Canada.

For other uses, see Nepton and Nepton River.
Nepton
Watershed of Nottaway River
Location
CountryCanada
ProvinceQuebec
RegionNord-du-Québec
Physical characteristics
SourceAndré Lake
 • locationEeyou Istchee James Bay, Nord-du-Québec, Quebec, Unidentified lake
 • coordinates49°58′25″N 73°52′52″W
 • elevation475 m (1,558 ft)
MouthChibougamau Lake
 • location
Eeyou Istchee James Bay, Nord-du-Québec, Quebec
 • coordinates
49°55′09″N 74°00′57″W
 • elevation
379 m (1,243 ft)
Length18.4 km (11.4 mi)[1]
Basin features
Tributaries 
 • leftDischarge of Demers Lake
 • rightNepton River North

The course of the river flows entirely into McCorkill Township.

The hydrographic slope of the Nepton River is accessible by a forest road serving the eastern side of Chibougamau Lake; the latter is connected by the North to route 167 which also serves the south side of Waconichi Lake and the Waconichi River. This last road comes from Chibougamau, going north-east to the south-eastern part of Mistassini Lake.

The surface of the Nepton River is usually frozen from early November to mid-May, however, safe ice movement is generally from mid-November to mid-April.

Geography
The main hydrographic slopes adjacent to the Nepton River are:

The Nepton River originates at the mouth of an unidentified lake (length: 1.0 kilometre (0.62 mi) altitude: 475 metres (1,558 ft)) in McCorkill Township. This source is located at:

  • 11.3 kilometres (7.0 mi) north-east of the mouth of the Nepton River (confluence with Chibougamau Lake);
  • 18.5 kilometres (11.5 mi) south-east of Waconichi Lake;
  • 30.5 kilometres (19.0 mi) south of Mistassini Lake;
  • 72.6 kilometres (45.1 mi) north-east of the village center of Chapais, Quebec;
  • 35.9 kilometres (22.3 mi) north-east of downtown Chibougamau;
  • 153 kilometres (95 mi) north-east of the mouth of the Chibougamau River (confluence with the Opawica River);
  • 386 kilometres (240 mi) east of the mouth of the Nottaway River.

From its source (Lake Andrew), the Nepton River flows over 18.4 kilometres (11.4 mi) generally to the northeast, according to the following segments:

  • 1.9 kilometres (1.2 mi) southwesterly, crossing Nepton Lake (length: 1.4 kilometres (0.87 mi); altitude: 468 metres (1,535 ft));
  • 2.8 kilometres (1.7 mi) westerly to the confluence of the Nepton River North (coming from the Northeast);
  • 4.8 kilometres (3.0 mi) southwesterly to a forest road;
  • 3.4 kilometres (2.1 mi) West, forming a hook to the South, to the outlet of Lake Demers (coming from the South);
  • 5.5 kilometres (3.4 mi) southwesterly to mouth.[2]

The Nepton River flows into a narrow bay on the northeastern shore of Nepton Bay which is an extension of the Bay of Islands, northeast of Chibougamau Lake and is connected to Girard Bay. From the mouth of the Nepton River, a peninsula advances in a straight line on the Southwest 1.4 kilometres (0.87 mi) in the bay to the outlet of the lake Forest. The mouth of the Nepton River is located at 0.4 kilometres (0.25 mi) east of the boundaries of Roy and McCorkill Townships.

From this mouth, the current flows over 18.3 kilometres (11.4 mi) first by crossing this bay towards the West which includes many islands, crossing to the west the Chibougamau Lake and bypassing Portage Island. Chibougamau Lake is the main head lake of Chibougamau River.

From the mouth of Chibougamau Lake, the current crosses the Lac aux Dorés, then descends generally to the southwest (except the large S of the upper part of the river) by taking the Chibougamau River, to its confluence with the Opawica River. From this confluence, the current flows generally to the southwest by the Waswanipi River to the east shore of Goéland Lake (Waswanipi River). The latter is crossed to the northwest by the Waswanipi River which is a tributary of Matagami Lake. Finally, the current flows along the Nottaway River and empties into Rupert Bay, south of James Bay.

The mouth of the Nepton River located at:

Toponymy

The toponym "Nepton River" was formalized on December 5, 1968, at the Commission de toponymie du Québec, that is to say, the foundation of this commission[3].

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References
  1. "Atlas of Canada". atlas.nrcan.gc.ca. Retrieved 2017-12-25.
  2. Distances from the Atlas of Canada (published on the Internet) from the Department of Natural Resources Canada.
  3. "Commission de toponymie du Québec – Banque de noms de lieux (Bank of places names)- Toponym: "Rivière Nepton"". toponymie.gouv.qc.ca. Retrieved 2017-12-25.

See also
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