Map of Northwestern Africa in 1906 showing the Barbary States of Morocco, Algeria, Tunis, and a portion of Tripoli, the western country of Rio de Oro, and the Upper Guinea States of Gambia, Portuguese Guinea, Sierra Leon, Liberia, Ashanti-Gold Coast Colony, Togo, Dahomey, Northern and Southern Nigeria, Kamerun, and Corisco or Spanish Guinea. The map also shows the French territories of Senegal, French Guinea, Grand Bassam, and French Kongo. The map shows major cities, ports, and trade centers, railroads, rivers, and mountain systems.