mountain
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher t ...
in
São Tomé and Príncipe
São Tomé and Príncipe, officially the Democratic Republic of São Tomé and Príncipe, is an island country in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two archipelagos around the two main isla ...
at elevation. It lies just west of the centre of
São Tomé Island
São Tomé Island, at , is the largest island of São Tomé and Príncipe and is home in May 2018 to about 193,380 or 96% of the nation's population. The island is divided into six districts of São Tomé and Príncipe, districts. It is located ...
Lembá District
Lembá is a district of São Tomé and Príncipe, on São Tomé Island. Its area is , and its population is 14,652 (2012).Pico de Ana Chaves (), lies about to its south east. The town Santa Catarina is to the west.
Description
The entire island of São Tomé is a massive
shield volcano
A shield volcano is a type of volcano named for its low profile, resembling a shield lying on the ground. It is formed by the eruption of highly fluid (low viscosity) lava, which travels farther and forms thinner flows than the more viscous lava ...
which rises from the floor of the
Atlantic Ocean
The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...
, over below sea level. It formed along the
Cameroon line
The Cameroon line (, , ) is a long chain of volcanoes that includes islands in the Gulf of Guinea and mountains on the African mainland, from Mount Cameroon on the coast towards Lake Chad on the northeast. They form a natural border between ea ...
, a linear
rift
In geology, a rift is a linear zone where the lithosphere is being pulled apart and is an example of extensional tectonics. Typical rift features are a central linear downfaulted depression, called a graben, or more commonly a half-graben ...
zone extending from
Cameroon
Cameroon, officially the Republic of Cameroon, is a country in Central Africa. It shares boundaries with Nigeria to the west and north, Chad to the northeast, the Central African Republic to the east, and Equatorial Guinea, Gabon, and the R ...
southwest into the Atlantic Ocean. Most of the
lava
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a Natural satellite, moon onto its surface. Lava may be erupted at a volcano or through a Fissure vent, fractu ...
erupted on São Tomé over the last million years has been
basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...
. The most recent activity was about 36,000 years ago.
On old maps of São Tomé and Príncipe, the mountain is named "Pico Gago Coutinho", after Portuguese naval officer
Carlos Viegas Gago Coutinho
Carlos Viegas Gago Coutinho, GCTE, GCC (; 17 February 1869 – 18 February 1959), generally known simply as Gago Coutinho, was a Portuguese geographer, cartographer, naval officer, historian and aviator. An aviation pioneer, Gago Coutinho and ...
coffee
Coffee is a beverage brewed from roasted, ground coffee beans. Darkly colored, bitter, and slightly acidic, coffee has a stimulating effect on humans, primarily due to its caffeine content, but decaffeinated coffee is also commercially a ...
and cocoa, and higher up are large trees swathed in
orchid
Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Orchids are cosmopolitan plants that are found in almost every habitat on Eart ...
s,
lichen
A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), m ...
s and other
epiphyte
An epiphyte is a plant or plant-like organism that grows on the surface of another plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphyt ...
s. The upper parts of the mountain, from to its peak, are
Afromontane
The Afromontane regions are subregions of the Afrotropical realm, one of the Earth's eight biogeographic realms, covering the plant and animal species found in the mountains of Africa and the southern Arabian Peninsula. The Afromontane regions o ...
cloud forest
A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest, is a generally tropical or subtropical, evergreen, Montane forest, montane, Tropical and subtropical moist broadleaf forests, moist forest characteri ...
, often swathed in mist. On the highest areas, tree cover lessens and vegetation is shorter, while
ferns
The ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular, i.e., having specialized tissue ...
Ponta Figo
Ponta Figo is a village on São Tomé Island
São Tomé Island, at , is the largest island of São Tomé and Príncipe and is home in May 2018 to about 193,380 or 96% of the nation's population. The island is divided into six districts of São ...
plantation and necessitates a camp at Pico Mesa at . The summit can then be reached in about an hour before descending via Carvalho to the Bombaim Plantation house. The other route ascends from the botanic garden at Bom Sucesso to Carvalho where there is a rest area and camping facilities. On the next day, the summit can be reached with a descent being made to Ponta Figo. The ascent can be made in a single eighteen hour hike from Ponta Figo, but this does not allow much time for viewing the flora and fauna. The trek is not difficult but the often rainy weather tends to make the path very slippery.
Sao Tome
SAO or Sao may refer to:
Places
* Sao civilisation, in Middle Africa from 6th century BC to 16th century AD
* Sao, a town in Boussé Department, Burkina Faso
* Serb Autonomous Regions (''Srpska autonomna oblast'', SAO), during the breakup of ...