Bolaños River

The Bolaños River is a river in Mexico flowing through the Sierra Madre Occidental, and a tributary of Río Grande de Santiago. It has a length of and a watershed of about.

Geography

The river's origin is in the state of Zacatecas, about west of the city of Fresnillo, about south of Tropic of Cancer. It flows south between the Sierra los Huicholes on the west and the Sierra de Morones on the east. It enters the state of Jalisco some later, eventually draining into the Lerma Santiago River, approximately northwest of the city of Tequila. The last of the river form the boundary between the states of Jalisco and Nayarit.
The principal municipalities transversed by the Bolaños River include:

in Zacatecas: San Mateo and Valparaiso;
in Jalisco: Mezquitic, Villa Guerrero, Bolaños, Chimaltitán and San Martín de Bolaños.