Modes of transport in Gabon include rail, road, water, and air. The one rail link, the Trans-Gabon Railway, connects the port of Owendo with the inland town of Franceville. Most but not all of the country is connected to the road network, much of which is unpaved, and which centres on seven "national routes" identified as N1 to N7. The largest seaports are Port-Gentil and the newer Owendo, and 1,600 km of inland waterways are navigable. There are three international airports, eight other paved airports, and over 40 with unpaved runways. Nearly 300 km of pipelines carry petroleum products, mainly crude oil.
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