Challwa Mayu [1] (Quechua challwa fish, mayu river,[2] "fish river", hispaniciced spelling Challhua Mayu) is a Bolivian village in the south-east of the Cochabamba Department located in the Arani Province, Vacas Municipality, north-west of Vacas.

At the time of census 2001 it had 770 inhabitants.

[3] The Ismael Montes Teacher Training College is situated in Challwa Mayu.

[4] This Cochabamba Department location article is a stub.

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