Pacocollo also known as Chancane, is a 5,113-metre-high (16,775 ft) mountain in the Andes of southern Peru. It is located in the Moquegua Region, Mariscal Nieto Province, Carumas District, and in the Tacna Region, Candarave Province, Candarave District. Pacocollo lies west of a lake named Pasto Grande or Ajuachaya and Wila Wilani.