The Cordillera Occidental range is one of two main mountain ranges in the Andes in Ecuador, the other being the Cordillera Central. It spans the whole country from north to south. The highest peak of the Cordillera Occidental is Chimborazo .The range extends from south to north dividing from the Colombian Massif in Nariño Department, passes north through Cauca, Valle del Cauca, Risaralda, Chocó, and Caldas Departments to the Paramillo Massif in Antioquia and Córdoba Departments.