Jatun Huaychahui (possibly from Quechua hatun big,[2] "big Huaychahui")[3] also known as Huaychahui (possibly from Aymara waych'a Minthostachys mollis, -wi a suffix, "place of waych'a plants"),[4][1][5] is a 5,445-metre-high (17,864 ft) mountain in the Andes of Peru.

[1] Jatun Huaychahui is located in the Arequipa Region, on the border of the Condesuyos Province, Cayarani District, and the La Unión Province, Puyca District, and in the Cusco Region, Chumbivilcas Province, Santo Tomás District.

It lies southwest of Huiscatongo.

[3] This Arequipa Region geography article is a stub.

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