angola has four principal natural regions: the arid coastal lowland, stretching from namibia to luanda and characterized by low plains and terraces; green hills and mountains, rising inland from the coast into a great escarpment; a large area of high inland plains of dry savanna, called the high plateau (planalto), which extends eastward and south-east from the escarpment; and rain forest in the north and in cabinda. the highest point in angola is morro de môco, at 2,620 m. elevations generally range from .