Gambia River
The present boundaries were defined in 1889 after an agreement between the United Kingdom and France. During the negotiations between the French and the British in Paris, the French initially gave the British around of the Gambia River to control. Starting with the placement of boundary markers in 1891, it took nearly 15 years after the Paris meetings to determine the final borders of the Gambia. The resulting series of straight lines and arcs gave the British control of areas about north and south of the Gambia River.