Eastmain River

The Eastmain River, formerly written East Main, is a river in west central Quebec. It rises in central Quebec and flows 800 km (500 mi) west to James Bay, draining an area of 46,400 km2 (17,900 sq mi). The First Nations Cree village of Eastmain is located beside the mouth.

Eastmain
Eastmain River in Dec. 2005 at the James Bay Road.
Drainage basin of the Eastmain River. Current basin in yellow. Diverted basin to the La Grande River in orange. Original basin in yellow and orange.
Location
CountryCanada
ProvinceQuebec
RegionJamésie
Physical characteristics
SourceLac Bréhat
 • locationBaie-James, Nord-du-Québec, Québec, Canada
 • coordinates52°31′30″N 70°52′00″W
 • elevation554 m (1,818 ft)
MouthJames Bay
 • location
Eastmain, Nord-du-Québec, Quebec, Canada
 • coordinates
52°14′30″N 78°34′00″W
 • elevation
0 m (0 ft)
Length756 km (470 mi)
Basin size46,400 km2 (17,900 sq mi)
Discharge 
 • average930 m3/s (33,000 cu ft/s)
Basin features
Tributaries 
 • left
  • (upstream) Eau Froide River,
  • Miskimatao River,
  • outlet of lake Sipestikuch,
  • Causabiscau River, Wabistane River,
  • Upstream from Opinaca Reservoir:
  • Acotago River,
  • outlet of lake Kapeykuck Ministiru,
  • Nicolas River, Déry River,
  • Caché Creek, outlet of "Lac de la Marée",
  • Tichégami River,
  • outlet of lakes Chamic and Mistamiquechamic,
  • outlet of lake Clauzel,
  • outlet of lake Lavalette,
  • outlet of lake Cadieux,
  • Saffray River;
  • Upstream of Hécla Lake:
  • outlet of lake Jules-Léger (via Bréhat Lake)
  • Des Quatre-Temps River (via Bréhat Lake.
 • right
  • (upstream)
  • La Pêche River (Eastmain),
  • Opinaca River,
  • Kauskatachinu Creek,
  • Kasapawatach Creek, Rapin Creek,
  • Wapatikw Creek,
  • Upstream of Opinaca Reservoir:
  • Wabamisk River,
  • À l'Eau Claire River (Eastmain),
  • outlet of lakes Village,
  • outlet of lake Bauerman,
  • Ross River (Eastmain River),
  • Cauouatstacau River,
  • Misask River;
  • Upstream of Hécla Lake:
  • Du Grand Portage Creek (via Hécla Lake),
  • Léran River (via Hécla Lake)

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