Trans-Gambia Highway Trans-Gambia Highway The Trans-Gambia Highway is the most important road in The Gambia, running across the centre of the nation in a north-south direction. The road is also economically important for Senegal, in which it is designated as the N4 road. The Gambia is an elongated state forming a country that is almost surrounded by Senegal (but not an enclave, as it also borders the Atlantic Ocean). The Gambia almost separates the Casamance region from the remainder of Senegal. The Trans-Gambia Highway provides the most important connection between the two parts of Senegal. As the N4, it runs from Kaolack
History of the Gambia the following years, ordinances were passed to bring these places under the control of the Protectorate. Finally, a Protectorate Ordinance passed in 1902 brought the whole of the Gambia besides St Mary's Island under the Protectorate system. the Gambia received its own executive and legislative councils in 1901 and gradually progressed toward self-government. Also in 1901, the Gambia Company, the first colonial military unit of the Gambia, was founded. It was formed as part of the Sierra Leone Battalion of the new West African Frontier Force (late Royal West African Frontier Force). A 1906 ordinance abolished slavery. During World War