The Western Andes run parallel to Colombia's Pacific coast and are separated from the Central Andes by the Cauca River Valley. The Pacific side of the Western Andes is the Chocó biogeographic region a biodiversity hotspots with substantial rainfall throughout the year. The largest peak in the Western Andes of Colombia is Cerro Tatamá, with an elevation of about 13,320 feet and is located in the Tatamá National Natural Park, straddling the departments of Risaralda, Chocó, and Valle del Cauca. The eastern slopes of the Western Andes are drier and support a mix of agriculture and pastureland, particularly in departments like Valle del Cauca, Cauca, and Nariño, where crops such as coffee, sugarcane, bananas, and cacao are cultivated.