Río Grande de Santiago

Río Grande de Santiago
Río Grande de Santiago at the NayaritJalisco border
Major rivers of Mexico, with the Rio Grande de Santiago (labelled Rio Santiago) in west–center
Location of mouth
Location
CountryMexico
Physical characteristics
Source 
  locationLake Chapala via Ocotlán
Mouth 
  location
Pacific Ocean at San Blas / Santiago Ixcuintla, Nayarit
  coordinates
21°37′41″N 105°26′52″W / 21.62806°N 105.44778°W / 21.62806; -105.44778
Length433 km (269 mi)
Basin size136,628 square kilometres (52,752 sq mi)
Discharge 
  averageAverage: 320 cubic metres per second (11,000 cu ft/s)
Maximum: 2,113 cubic metres per second (74,600 cu ft/s)
Minimum: 29.5 cubic metres per second (1,040 cu ft/s)
Basin features
Tributaries 
  leftMololoa River
  rightRío Verde, Juchipila River, Bolaños River, Huaynamota River

The Río Grande de Santiago, or Santiago River, is a river in western Mexico. It flows westwards from Lake Chapala via Ocotlán through the states of Jalisco and Nayarit to empty into the Pacific Ocean. It is one of the longest rivers in Mexico, measuring up 433 km (269 mi) long.