Maparaju (possibly from Quechua map'a dirty, stained, rahu mountain with snow, "dirty (or stained) snow mountain") is a mountain in the Cordillera Blanca in the Andes of Peru. It is located between Huaraz and Huari provinces, in the region of Ancash. Maparaju lies at the head of the Cayesh valley, southwest of Cayesh and Artisa and northeast of Qarwakancha.
Lake MaparajuAmerican Alpine Club, The American Alpine Journal, Vol. 18, No. 2, Issue 47, 1973, p. 322 is a little lake located south of the mountain at .
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