Supay Q'asa (Quechuasupay devil, demon, q'asa mountain pass,[2] "devil's pass" also spelled Supay Khasa) is a mountain in the BolivianAndes which reaches a height of approximately 2,920 m (9,580 ft). It is located in the Chuquisaca Department, Tomina Province, Sopachuy Municipality. It lies at the Supay Q'asa River.[1][3]