The Urubamba River or Willkamayu (Quechua for "sacred river") is a river in Peru. Upstream it is called by its Aymara name Willkanuta ("house of the sun", hispanicized Vilcanota). Within the La Convención Province the naming changes to Urubamba. A partially navigable headwater of the Amazon River, it rises in the Andes to the southeast of Cuzco. It originates in the mountain Khunurana in the Puno Region, Melgar Province, near the La Raya pass.