Yí River

Yí River
Location
CountryUruguay
Physical characteristics
Source 
  locationCuchilla Grande highlands
Mouth 
  location
Río Negro (Uruguay)
Length210 kilometres (130 mi)

The Yí River (Spanish, Río Yí) is a river in Uruguay. The Yí and the Tacuarembó Rivers are the principal tributaries of the Río Negro.