The Amatzinac river also called Tenango is a Mexican river in the states of Morelos

Morelos

Morelos officially Estado Libre y Soberano de Morelos is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 33 municipalities and its capital city is Cuernavaca....

 and Puebla

Puebla

Puebla officially Estado Libre y Soberano de Puebla is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 217 municipalities and its capital city is Puebla....

. It flows south from its spring in the foothills of Popocatepetl

Popocatépetl

Popocatépetl also known as "Popochowa" by the local population is an active volcano and, at , the second highest peak in Mexico after the Pico de Orizaba...

 and south through the canyon which is also called Amatzinac and reaches the dry plain near Chalcatzingo

Chalcatzingo

Chalcatzingo is a Mesoamerican archaeological site in the Valley of Morelos dating from the Formative Period of Mesoamerican chronology. The site is well-known for its extensive array of Olmec-style monumental art and iconography. Located in the southern portion of the Central Highlands of Mexico,...

. It gives waters to the municipalities of Tetela del Volcán

Tetela del Volcán

Tetela del Volcán or simply Tetela, is a city in the Mexican state of Morelos. It is located on the slopes of the volcano Popocatépetl. .The city serves as the municipal seat for the surrounding municipality of the same name...

, Zacualpan

Zacualpan

Zacualpan may refer to any of the following Mexican cities:*Zacualpan, Colima*Zacualpan, Guerrero*Zacualpan, Mexico State*Zacualpan, Morelos *Zacualpan, Nayarit*Zacualpan, Tlaxacala*Zacualpan, Veracruz...

 and Temoac

Temoac

Temoac is a town in the Mexican state of Morelos. It stands at .The town serves as the municipal seat for the surrounding municipality, with which it shares a name. The building where the municipal government he served as an elementary school Temoac the people in the nineteenth century and early...

. In dry season the river is little more than a shallow stream but at the end of the rainy season it grows due to the meltwaters from the volcano.

Its name means "little paper river" in the Nahuatl language. The river Amatzinac gave its name to a suite of orchestral pieces by Mexican composer José Pablo Moncayo

José Pablo Moncayo

José Pablo Moncayo García was a Mexican pianist, percussionist, music teacher, composer and conductor. "As composer, José Pablo Moncayo represents one of the most important legacies of the Mexican nationalism in art music, after Silvestre Revueltas and Carlos Chávez." He produced some of the...

.