Gabon, is a country on the Atlantic coast of Central Africa, on the equator, bordered by Equatorial Guinea to the northwest, Cameroon to the north, the Republic of the Congo to the east and south, and the Gulf of Guinea to the west. It has an area of 270,000 square kilometers (100,000 sq mi) and a population of 2.3 million people. There are coastal plains, mountains (the Cristal Mountains and the Chaillu Massif in the center), and a savanna in the east. Libreville is the country’s capital and largest city.