Colca River
| Colca Qullqa | |
| River | |
 Colca valley | |
| Name origin: Quechua | |
| Country | Peru |
|---|---|
| Region | Arequipa Region |
| Tributaries | |
| - left | Asirumayu (Asirumayo), Anchapara |
| - right | P'ikumayu (Picomayo), Qantumayu, Challwanka (Chalhuanca), Pirwa (Perhua), Qullpa Pallqa Mayu (Collpa Palca Mayo), Kunturuma (Condoroma), Pilluni, Qallumayu, Antamayu |
| Source | |
| - location | Callalli District |
| Mouth | Pacific Ocean |
| - location | Camaná District |
| - coordinates | 16°37′52″S 72°45′51″W / 16.63111°S 72.76417°WCoordinates: 16°37′52″S 72°45′51″W / 16.63111°S 72.76417°W |
The Colca River or Qullqa River (Quechua qullqa deposit)[1] which downstream is called Majes and Camaná is a Peruvian river in the Arequipa Region that flows deep in the rugged Andes of southern Peru. It originates south-east of the village Janq'u Lakaya (Ancolaccaya) in the Callalli District of the Caylloma Province. On its way from Chivay to Cabanaconde it flows through one of the deepest canyons of the world known as the Colca Canyon.[2] Near the town Camaná the river empties into the Pacific Ocean.