The Cordillera Raura, also part of the Cordillera Occidental, lies between lat 10°21' and 10°31'S. and long 76°41' and 76°50'W. It trends northwesterly and is about 20 km long. The glacierized area is 57.03 km², and the glaciers are classified chiefly as mountain glaciers. The highest peak, Cerro Santa Rosa, rises to 5,727 m asl. The area drains into the Pacific Ocean by Río Pativilca and Río Huaura and into the Atlantic Ocean by Río Marañón and Río Huallaga.