Sao Tome Island, at 854 square kilometers (330 sq mi), is the largest island of Sao Tome. This island and smaller nearby islets make up Sao Tome Province, which is divided into six districts. The main island is located 2 km north of the equator. It is about 48 km (30 mi) long (North-South) by 32 km (20 mi) wide (east-west). It rises to 2,024 m (6,639 ft) at Pico de Sao Tome and includes the capital city, Sao Tome, on the northeast coast. The nearest city on mainland Africa is the port city of Port Gentil in Gabon located 240 km (150 mi) to the east.