Iscailarjanco (possibly from Aymara larqa irrigation channel, anku tendon; nerve,[2][3] Larqanku a mountain, "little Larqanku") is a 5,415-metre-high (17,766 ft) mountain in the Andes of southern Peru It is located in the Puno Region, El Collao Province, Santa Rosa District, and in the Tacna Region, Candarave Province, Candarave District.

Iscailarjanco lies northeast of Cancave, southwest of Pantiuso and south of Larjanco.

Iscarlaijanco is also the name of an intermittent stream which originates west the mountain near Cancave.

Another stream named Larjanco originates northwest of the mountain.

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