Web3 days ago · The Namib, 50 to 80 miles wide over most of its length, is constricted in the north where the Kaokoveld, the western mountain scarp of the Central Plateau, abuts on the sea. The Central Plateau, which varies in altitude from 3,200 to 6,500 feet (975 to 1,980 metres), is the core of the agricultural life of Namibia.