布蘭卡山脈
The Santa River separates the Cordillera Negra from the Cordillera Blanca, a snow-covered range rising up to 6,768 m in the east almost parallel to it. Most of the year it has no snow although it rises up to 5,181 m in its highest parts. It intercepts the warmth from the Pacific Ocean, causing the line of perpetual snow sinking as low as 5,100 m in the Cordillera Blanca.