Blanche (Loire-Atlantique)

La Blanche river at the end of summer in Chéméré.
Native nameLa Blanche (French)
Location
CountryFrance
DepartmentLoire-Atlantique
ArrondissementNantes
Physical characteristics
Source 
  locationChaumes-en-Retz
  coordinates47°07′04″N 1°55′47″W / 47.1179°N 1.9297°W / 47.1179; -1.9297
  elevation11,36
MouthAcheneau
  location
Cheix-en-Retz
  coordinates
47°10′45″N 1°49′48″W / 47.1791°N 1.8301°W / 47.1791; -1.8301
  elevation
0m
Length16.7 km (10.4 mi)
Basin features
ProgressionAcheneauLoireAtlantic Ocean
Tributaries 
  rightRuisseau du Bois Beaulieu

The Blanche (French pronunciation: [blɑ̃ʃ] ) is a tributary of the left bank of the Acheneau and thus a sub-tributary of the Loire.