Jatun Mayu ( Quechua ''hatun, jatun'' big, great, ''mayu'' river, "great river") which downstream successively is named Challajtiri Mayu, Rosario, Agua Castilla, Jatun Mayu again and Qaysa is a

Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...

n river in the provinces of

Antonio Quijarro Antonio Quijarro is a province in the central parts of the Bolivian Potosí Department situated at the Salar de Uyuni. Its seat is Uyuni. Location Antonio Quijarro province is one of sixteen provinces in the Potosí Department. It is located b ...

José María Linares José María Linares Lizarazu (10 July 1808 – 23 October 1861) was a Bolivian lawyer and politician who served as the 13th president of Bolivia from 1857 to 1861. Early life and education He was born in Tical, Potosí, in his family's hacie ...

and

Tomás Frías Tomás Frías Ametller (21 December 1805 – 10 May 1884) was a Bolivian lawyer and politician who served as the 17th President of Bolivia twice nonconsecutively from 1872 to 1873 and from 1874 to 1876. Having graduated as a lawyer and work ...

of the Potosí Department. It belongs to the Pillku Mayu river basin. The Jatun Mayu originates near the villages of Ollerias and La Esquina in the

Potosí Municipality Potosí Municipality is the capital municipality of the Tomás Frías Province in the Potosí Department in Bolivia. Its seat is Potosí which is the capital of the department as well. Geography The Potosí mountain range traverses the municip ...

of the Tomás Frías Province. At first its direction is to the northwest. It flows along the village of Challwiri ''(Challviri)'' in a western direction. Near Walla Laqaya ''(Hualla Lacaya)'' it receives the name Challajtiri Mayu. Southwest of

Jatun Ch'utu Jatun Ch'utu (Quechua ''jatun'' big, ''ch'utu'' cone, "big cone", also spelled ''Jatun Chutu'') is a mountain in the Bolivian Andes which reaches a height of approximately . It is located in the Potosí Department, Tomás Frías Province, Potos� ...

it turns to the southeast. Near the village of Rosario in the

Porco Municipality Porco Municipality is the third municipal section of the Antonio Quijarro Province in the Potosí Department in Bolivia. Its seat is Porco. Geography Some of the highest mountains of the municipality are listed below: Subdivision The mun ...

of the

Antonio Quijarro Province Antonio Quijarro is a province in the central parts of the Bolivian Potosí Department situated at the Salar de Uyuni. Its seat is Uyuni. Location Antonio Quijarro province is one of sixteen provinces in the Potosí Department. It is located be ...

it gets the name Rosario. Before it reaches the village of Karma (or Carma) it is named Agua Castilla. After the confluence with the Topala River in the Caiza "D" Municipality of the José María Linares Province near the village of Jirinchura at it is called Jatun Mayu again. Its directions is mainly to the southeast. After receiving waters from the Horno Mayu or Qaysa, a left tributary which originates southeast of Cucho Ingenio, the river gets the name Qaysa ''(Caiza)''. It is a left tributary of the

Tumusla Tumusla is a village in the Nor Chichas Province, in the Potosí Department of Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) w ...

River.

References

Rivers of Potosí Department {{Bolivia-river-stub