The majority of the northern component of this vary has an elevation of about four,000 m (thirteen,123 ft); the southern portion is considerably reduced. Rainfall, Though scanty just about everywhere, is greater in the northern 50 %, wherever the land is roofed with scrub vegetation. The southern location receives Pretty much no precipitation, as well as landscape is made up largely of barren rocks. All the Cordillera Occidental regions are sparsely populated, as well as here south is almost uninhabited.