The vast majority of northern section of the array has an elevation of about four,000 m (13,123 ft); the southern component is relatively lower. Rainfall, although scanty everywhere, is greater inside the northern 50 percent, here exactly where the land is roofed with scrub vegetation. The southern location receives Just about no precipitation, and also the landscape consists mostly of barren rocks. All the Cordillera Occidental regions are sparsely populated, as well as the south is just about uninhabited.