Rivière à l'Ours (rivière des Aulnaies)

Rivière à l'Ours
Location
CountryCanada
ProvinceQuebec
RegionSaguenay–Lac-Saint-Jean
MRCLe Fjord-du-Saguenay Regional County Municipality
Physical characteristics
SourceLac à l'Ours
  locationBégin
  coordinates48°42′46″N 71°15′11″W / 48.71278°N 71.25306°W / 48.71278; -71.25306
  elevation191 m (627 ft)
MouthRivière des Aulnaies
  location
Saint-Ambroise
  coordinates
48°44′22″N 71°08′17″W / 48.73944°N 71.13806°W / 48.73944; -71.13806
  elevation
120 m (390 ft)
Length19.8 km (12.3 mi)
Basin features
Tributaries 
  leftRuisseau du Sault.
  right(upstream) Ruisseau à Néron, Le Petit Bras, décharge du Lac de la Belle Truite et de l’Étang Fortin.

The Rivière à l'Ours (English: Bear River) is a tributary of the rivière des Aulnaies, flowing on the northwest bank of the Saint Lawrence River, successively in the municipalities of Bégin and Saint-Ambroise, in the Fjord-du-Saguenay, in the region administrative Saguenay–Lac-Saint-Jean, in the Province of Quebec, in Canada.

The Rivière à l'Ours watershed is served by rue Simard (in the village of Saint-Ambroise), chemin du rang des Chutes, chemin du 9th rang and chemin de la Bleuetière. Secondary forest roads serve the upper part of this slope.

Forestry and agriculture are the main economic activities in the watershed.

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