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18/03/13

Isla Grande de Tierra del Fuego

Isla Grande de Tierra del Fuego


Where: Argentina and Chile

Several centuries ago, the only inhabitants of the southern extremity of South America were the native Yahgan Indians. To survive in the inhospitable climate of this land, the Yahgans made ample use of fire. The campfires continuously burning here were so numerous and so bright that when the first Europeans to explore the region saw them from the sea, they called the whole place Tierra del Fuego ("Land of Fire"). Today, the name Tierra del Fuego applies to the group of islands that make up the southern tips of both Argentina and Chile. Isla Grande -- as its name suggests -- is the largest landmass in the archipelago, with territories belonging to both those countries.

The word "southernmost" is proudly applied to many attributes of Isla Grande: It's the southernmost part of the Patagonia region (the Patagonia ecotourism base town of Punta Arenas is just across the Strait of Magellan from the island) and claims to have the "southernmost city in the world" in Ushuaia, Argentina (Puerto Williams in Isla Navarino contests that claim). Ushuaia, a former penal colony, is the main embarkation point for ship expeditions to the Southern Ocean sites of Antarctica , the Falklands , and South Georgia . The principal attraction of the town itself is the Museo del Fin del Mundo (Maipú 175; tel. 54/2901/421-863), with interesting exhibits on the indigenous peoples and nature of Tierra del Fuego and fascinating navigation artifacts and records. Besides those passengers who spend a day here en route to the Drake Passage and the Antarctic region, Ushuaia and Isla Grande don't get much tourism. The 48,000-sq.-km (18,533-sq.-mile) island's terrain is mostly mountainous, and there are some oil and natural gas deposits in the northern part of the island.

Not far from Isla Grande, though it's actually a separate small island in the Tierra del Fuego group, is the real southernmost tip of South America and one of the most fabled sites in the story of seafaring: Cape Horn (Cabo de Hornos). Before the opening of the Panama Canal in 1914, rounding "the Horn" was the only way for ships to get between the Atlantic and the Pacific Oceans, and its hostile waters were -- and still are -- notorious for the challenges they posed to sailors. Strong winds and currents, enormous waves, and even icebergs sent many a seaman to his watery grave.

History

Earliest human settlement occurred more than 10,000 years ago. The Yaghan people were some of the earliest known humans settling in Tierra del Fuego, with certain recognizable archeological sites at locations such as Navarino Island within the islands of Tierra del Fuego.
The name Tierra del Fuego derives from Portuguese explorer Ferdinand Magellan, who was the first European to visit these lands in 1520. He believed he was seeing the many fires (fuego in Spanish) of the Amerindians, which were visible from the sea and that the "Indians" were waiting in the forests to ambush his armada. These were fires lit by the Yamana Indians who lived in the northern part of the island, to ward off the low temperatures in the area. Originally called the "Land of Smoke," it was later changed to the more exciting "Land of Fire."
Four native Fuegians, including "Jemmy Button" (Orundellico), were brought from Tierra del Fuego by Robert Fitzroy on his first voyage with the HMS Beagle in 1830. They were taken to meet the King and Queen in London and were to an extent celebrities. The surviving three returned to Tierra del Fuego with the Beagle with Charles Darwin, who made extensive notes about his visit to the islands.
In 1881 it was divided between Argentina and Chile, having previously been claimed by both countries in its entirety.


Climate

The climate in this region is very inhospitable. It is a subpolar oceanic climate (Köppen climate classification Cfc) with short, cool summers and long, wet, moderate winters: the northeast is characterized by strong winds and little precipitation, in the south and west it is very windy, foggy, and wet for most of the year, and there are very few days without rain, slush, hail or snow. The permanent snow-line begins at 700 m (2,300 ft) above sea level. Isla de los Estados, east of Ushuaia, receives of rain. Rainfall is heavier in the west, a year. Temperatures are steady throughout the year: in Ushuaia they hardly surpass in summers and average in winters. Snowfall can occur in summer. The cold and wet summers help preserve the ancient glaciers. The southernmost islands possess subantarctic climate typical of tundra that makes the growth of trees impossible. Some areas in the interior have a polar climate. Regions in the world with similar climates to southern Tierra del Fuego are: Aleutian islands, Iceland, Alaska Peninsula and Faroe Islands.

Flora

Only 30% of the islands have forests, which are classified as Magellanic subpolar; the northeast is made up by steppe and cool semidesert.
There are six species of tree found in Tierra del Fuego: Canelo or Winter's Bark (Drimys winteri), Maytenus magellanica, Pilgerodendron uviferum the southernmost conifer in the world, and three kinds of Southern Beech; Nothofagus Antarctica, Nothofagus pumilio and the evergreen Nothofagus betuloides. Very delicious fruits grow in open spaces in these forests, such as beach strawberry (Fragaria chiloensis var. chiloensis forma chiloensis) and calafate (Berberis buxifolia), which were and are collected respectively by Indians and countrymen. These forests are unique in the world for having developed in a climate with such cold summers. Tree cover extends very close to the southernmost tip of South America. Winds are so strong that trees in wind-exposed areas grow twisted by the force of winds, and people call the trees "flag-trees" for the shape that they need to take in the fight with the wind. Tree vegetation extends as far south as the Isla de los Estados, Navarino Island and the north of Hoste Island. At altitudes above, dwarf nothofagus communities are found. Going further south, Wollaston Islands and the south of Hoste Island are covered by subantarctic tundra.
Forests from Tierra del Fuego have expanded beyond local importance; they have been a source of trees that have been planted abroad in places with practically the same climate but which were originally devoid of trees like Faroe Islands and nearby archipelagos. Most species were gathered from the coldest places in Tierra del Fuego, sites mainly with tundra borders. This effort resulted in positive changes, as the heavy winds and cool summers in the Faroe Islands did not allow the growth of trees from other regions in the world. The imported trees are used ornamentally, as curtains against wind, and for fighting erosion caused by storms and grazing in the Faroe Islands.

Economy

The main industries are oil, natural gas, sheep farming and ecotourism. On the Argentine side there are several electronic companies established. Tierra del Fuego is also home to the small brewing company Cervecería Fueguina, which produces three beers under the Beagle brand name.





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