Ondaine

Ondaine
Location
CountryFrance
Physical characteristics
Source 
  locationPlanfoy
  coordinates45°22′49″N 4°25′31″E / 45.380171°N 4.425212°E / 45.380171; 4.425212
  elevation1,020 m (3,350 ft)
MouthLoire
  location
Unieux
  coordinates
45°25′03″N 4°14′55″E / 45.417522°N 4.248569°E / 45.417522; 4.248569
  elevation
430 m (1,410 ft)
Length18.6 km (11.6 mi)
Basin size125 km2 (48 sq mi)
Basin features
ProgressionLoireAtlantic Ocean
Tributaries 
  leftCotatay , Valchérie , Echapre , Gampille
  rightEgotay , Borde-Morning

The Ondaine (French pronunciation: [ɔ̃dɛn]) or Ondenon ([ɔ̃dnɔ̃]) is a river in the Loire department of France. It is a right tributary of the Loire.