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Diana's Peak
Diana's Peak is the highest point, at , on the island of Saint Helena, a British overseas territory in the South Atlantic Ocean. It is of volcanic origin. The mountain and its surroundings with a total area of 81 ha were proclaimed a national park in March 1996, the first on the island. It is a preserve of several endangered endemic species, including tree fern, he cabbage and black cabbage trees, and whitewood. The park contains walking paths connecting the peaks - Mt. Actaeon (814m), Diana's Peak and Cuckold's Point (815m). The two shorter peaks are topped by large Norfolk pines. On the northern slopes there is a nursery for endemic species. The peak is located at the tripoint where the districts of Sandy Bay (southwest), Levelwood (east) and Longwood (north) meet. The closest settlements are Bamboo Hedge (the main settlement of Sandy Bay District), Hutt's Gate (in Longwood District) and Levelwood Village. Gallery See also *List of mountains and hills of Saint He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Helena
Saint Helena () is a British overseas territory located in the South Atlantic Ocean. It is a remote volcanic tropical island west of the coast of south-western Africa, and east of Rio de Janeiro in South America. It is one of three constituent parts of the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha. Saint Helena measures about and has a population of 4,439 per the 2021 census. It was named after Helena, mother of Constantine I. It is one of the most remote islands in the world and was uninhabited when discovered by the Portuguese enroute to the Indian subcontinent in 1502. For about four centuries the island was an important stopover for ships from Europe to Asia and back, while sailing around the African continent, until the opening of the Suez canal. St Helena is the United Kingdom's second-oldest overseas territory after Bermuda. Saint Helena is known for being the site of Napoleon's second exile, following his final defeat in 1815. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tripoint
A tripoint, trijunction, triple point, or tri-border area is a geographical point at which the boundaries of three countries or subnational entities meet. There are 175 international tripoints as of 2020. Nearly half are situated in rivers, lakes or seas. On dry land, the exact tripoints may be indicated by markers or pillars, and occasionally by larger monuments. Usually, the more neighbours a country has, the more international tripoints that country has. China with 16 international tripoints and Russia with 11 to 14 lead the list of states by number of international tripoints. Other countries, like Brazil, India and Algeria, have several international tripoints. Argentina has four international tripoints. South Africa, Pakistan and Nigeria have three international tripoints while Bangladesh and Mexico have only one. Within Europe, landlocked Austria has nine tripoints, among them two with Switzerland and Liechtenstein. Island countries, such as Japan and Australia, have no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of Saint Helena
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geography Of Saint Helena
Saint Helena is an island in the South Atlantic Ocean, about midway between South America and Africa. St Helena has a land area of 122 square kilometres and is part of the territory of Saint Helena, Ascension and Tristan da Cunha which includes Ascension Island and the island group of Tristan da Cunha. Physical geography Climate The climate of Saint Helena island can be described as tropical, marine and mild, tempered by the Benguela Current and trade winds which blow almost continuously. Similarly, the climate of Tristan da Cunha is marine, mild and also tempered by trade winds, although the climate is temperate in nature. Ascension Island is warmer and wetter than St Helena. Terrain Saint Helena has a rugged, volcanic terrain, with small scattered plateaus and plains, with the largest area of level ground on the island being Prosperous Bay Plain in the eastern arid area. The other islands of the group have a volcanic origin. The highest point on the island is Diana's Peak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mountains And Hills Of Saint Helena, Ascension And Tristan Da Cunha
This is a list of mountains and hills in Saint Helena, Ascension, and Tristan da Cunha, the British Overseas Territory The British Overseas Territories (BOTs), also known as the United Kingdom Overseas Territories (UKOTs), are fourteen dependent territory, territories with a constitutional and historical link with the United Kingdom. They are the last remna ..., listed by height. List of mountains and hills Over 1000m 750m to 1000m 500m to 750m 250m to 500m 50m to 250m Other hills and hill features ''NB: Many of these hills and features are over 200m.'' Maps File:Topographic map of Saint Helena-en.svg, Topographic map of Saint Helena File:Ile de l'ascension routes.svg, Topographic map of Ascension Island File:Tristan Map.png, The Tristan da Cunha archipelago File:Gough Island Map.jpg, Relief map of Gough Island File:Gough Island Landsat.jpg, Satellite map of Gough Island See also *Geography of Saint Helena *Geography of Tristan da Cunha External l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longwood, Saint Helena
Longwood is a settlement and a district of the British island of Saint Helena in the South Atlantic Ocean. Description In 2021, Longwood had a population of 765, compared with a population of 960 in 1998. The area of the district is . The district is second only in size to Blue Hill, and includes the settlement of Hutt's Gate, with its St Matthew's church. The district also contains the island's only golf course. The district contains Prosperous Bay Plain, which is where Saint Helena Airport and the Millennium Forest is located. There is a weather recording station in the Longwood district. Readings of temperature, air pressure and visibility are automatically taken and communicated every three hours. History Observatories On leaving the University of Oxford, in 1676, Edmond Halley visited Saint Helena and set up an observatory with a aerial telescope with the intention of studying stars from the Southern Hemisphere. The site of this telescope is near St Matthew's church i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levelwood, Saint Helena
Levelwood is one of eight Saint Helena#Administrative divisions, districts of the island of Saint Helena, part of the British Overseas Territories, British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha in the South Atlantic Ocean. In 2008 it had a population of 316, compared to a population of 376 in 1998,Saint Helena census and is rural in nature. References Districts of Saint Helena Populated places in Saint Helena, Ascension and Tristan da Cunha {{SaintHelena-geo-stub ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandy Bay, Saint Helena
Sandy Bay is one of eight districts of the island of Saint Helena, part of the British Overseas Territory of Saint Helena, Ascension and Tristan da Cunha in the South Atlantic Ocean. Located on the island's southeastern coast, it is sparsely populated and is a popular recreation site. Description Terrain in the district is quite varied with steep ridges and a limited amount of flat ground, as befits the island's volcanic origin. The lower reaches of the bay are generally arid, but the upper area is lushly vegetated. Most of the island's coffee and bananas are grown there. The district has the largest beaches on the island and is a popular recreation spot. Due to its southeastern location, the beaches are exposed to the prevailing south-easterly winds and subject erosion from heavy seas. West of the bay, one of the island's Post Box Walks leads to a set of sea stacks and tidal pools called Lot's Wife's Ponds, which are popular for swimming and fishing. Demographics Its population h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norfolk Pine
''Araucaria heterophylla'' (synonym ''A. excelsa'') is a species of conifer. As its vernacular name Norfolk Island pine (or Norfolk pine) implies, the tree is endemic to Norfolk Island, an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia. It is not a true pine, which belong to the genus ''Pinus'' in the family Pinaceae, but instead is a member of the genus ''Araucaria,'' in the family Araucariaceae, which also contains the monkey-puzzle tree. Members of ''Araucaria'' occur across the South Pacific, especially concentrated in New Caledonia (about due north of Norfolk Island) where 13 closely related and similar-appearing species are found. It is sometimes called a star pine, Polynesian pine, triangle tree or living Christmas tree, due to its symmetrical shape as a sapling. History The first European known to have sighted Norfolk Island was Captain James Cook. In 1774, on his second voyage to the South Pacific in HMS ''Resoluti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe and Asia from the "New World" of the Americas in the European perception of the World. The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and North and South America to the west. As one component of the interconnected World Ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Atlantic Ocean is divided in two parts, by the Equatorial Counter Current, with the North(ern) Atlantic Ocean and the South(ern) Atlantic Ocean split at about 8°N. Scientific explorations of the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrobium
''Petrobium'' is a genus in the family Asteraceae. The only known species is ''Petrobium arboreum'', called Saint Helena whitewood. It is found in the tree-fern thicket at the top of the central ridge of island of Saint Helena in the South Atlantic Ocean. The plants are either female or hermaphrodite, i.e. the species is gynodioecious.Flann, C (ed) 2009+ Global Compositae Checklist See also *Flora of St Helena The flora of Saint Helena, an isolated island in the South Atlantic Ocean, is exceptional in its high level of endemism and the severe threats facing ...
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Melanodendron
''Melanodendron'' is a genus of trees in the family Asteraceae, with only one species, ''Melanodendron integrifolium'' (black cabbage tree), native to the island of Saint Helena (South Atlantic Ocean). It is related to the Saint Helenan gumwoods (''Commidendrum'' spp.) and is the most common of the remaining cabbage tree species of Saint Helena, although it is considered endangered due to the restricted population size. See also *Flora of Saint Helena The flora of Saint Helena, an isolated island in the South Atlantic Ocean, is exceptional in its high level of endemism and the severe threats facing the survival of the flora. In phytogeography, it is in the phytochorion St. Helena and Ascension Re ... References * Cronk, Q.C.B. (1995) The endemic Flora of St Helena. Anthony Nelson Ltd, Oswestry. Monotypic Asteraceae genera Flora of Saint Helena Astereae Endangered plants {{Astereae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
