What is "millu"

Millu ( Aymara for a kind of salpeter / light brown, reddish, fair-haired, dark chestnut, Quechua for salty, hispanicized spelling Millo) is a mountain in the Wansu mountain range in the Andes of Peru, about high. It is situated in the Apurímac Region, Antabamba Province, Oropesa District. Millu lies southwest of Puka Urqu and northwest of Mina Q'asa.