Porto Amboim is a port town in Cuanza Sul Province, Angola with a population of 65,000; it comprises an area of 4,638 km2. In the past Porto Amboim was connected by an isolated 123 km 610 mm narrow gauge railway to Gabela, albeit closed in 1987 due to the civil war and to the abandonment of most coffee plantations, the biggest source of revenue from Gabela. Originally Porto Amboim was known as Kis…