Yanajaja (possibly from Quechua yana black, qaqa rock, "black rock") is a mountain in the west of the Chila mountain range in the Andes of Peru. It is located in the Arequipa Region, Castilla Province, Chachas District.escale.minedu.gob.pe - UGEL map of the Caylloma Province 1 (Arequipa Region) Yanajaja lies southwest of Cerani at a lake named Cochapunco.
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