the mighty Zambezi may be Africa’s fourth-longest river, running for 1,700 miles, and may be a stunning tourist attraction with its white-water rapids and the Victoria Falls, but as a trade route it is of little use. It flows through six countries, dropping from 4,900 feet to sea level when it reaches the Indian Ocean at Mozambique. Parts of it are navigable by shallow boats, but these parts do not interconnect, thus limiting the transportation of cargo.
