Uqi Uqini is a 5,532-metre-high volcano in the Andes. It is situated in the Cordillera Occidental on the border of Bolivia and Chile. Uqi Uqini is located in the Arica and Parinacota Region of Chile and in the Oruro Department of Bolivia, in the Sajama Province, Turku Municipality, Chachakumani Canton. Uqi Uqini lies south of National Route 4 near the Chungara-Tambo Quemado pass and north of Umurata, Acotango and Capurata.
Uqi Uqini is a twin volcano formed by andesite, dacite and rhyolite and is of Pleistocene age just like the volcanoes Kimsa Chata complex.
Wikipedia https://en.wikipedia.org/wiki/Uqi_Uqini
Coordinates -18°19'24.168" N -69°2'16.335" E