Portal:São Tomé and Príncipe/Selected article/1



Pico de São Tomé is the highest mountain in São Tomé and Príncipe at 2,024 metres. It lies just west of the centre of São Tomé Island in the Obo National Park. The second highest point, Pico Ana Chaves, lies to its south east. The mountain is forested and accessible only on foot.

The entire island of São Tomé is a massive shield volcano which rises from the floor of the Atlantic Ocean, over 3000 m below sea level. It formed along the Cameroon line, a linear rift zone extending from Cameroon southwest into the Atlantic Ocean. Most of the lava erupted on São Tomé over the last million years has been basalt. The youngest dated rock on the island is about 100,000 years old, but numerous more recent cinder cones are found on the southeast side of the island.