Saint-Régis River (Roussillon)

Saint-Régis River
Saint-Régis River at Saint-Constant taken in November 2018
Location
CountryCanada
ProvinceQuebec
RegionMontérégie
MRCRoussillon Regional County Municipality
Physical characteristics
SourceVarious agricultural and urban streams, woodlands, wetlands and small bodies of water.
  locationSaint-Isidore
  coordinates45°17′35″N 73°41′03″W / 45.292965°N 73.684029°W / 45.292965; -73.684029
  elevation52
MouthSt. Lawrence Seaway
  location
Sainte-Catherine
  coordinates
45°24′21″N 73°34′18″W / 45.40583°N 73.57166°W / 45.40583; -73.57166
  elevation
118 m (387 ft)
Length19.2 km (11.9 mi)
Basin size97.2 km2 (37.5 sq mi)
Basin features
Tributaries 
  left(upstream)
  right(upstream) Saint-Pierre River, Saint-Simon stream, Santoire stream, Lefrançois stream, Boyer branch, Lussier branch, Sainte-Marie branch, Houle stream.

The Saint-Régis River is a tributary of the south shore of the St. Lawrence River. The Saint-Régis river flows in the municipality of Saint-Isidore, Saint-Constant and Sainte-Catherine, in the Roussillon Regional County Municipality, in the administrative region of Montérégie, in the southwest of Quebec, in Canada.