Los Glaciares National Park
Encyclopedia
Parque Nacional Los Glaciares (Spanish:
Spanish language
Spanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...

 The Glacier
Glacier
A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

s
) is a national park
National park
A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or...

 in the Santa Cruz Province
Santa Cruz Province (Argentina)
Santa Cruz is a province of Argentina, located in the southern part of the country, in Patagonia. It borders Chubut province to the north, and Chile to the west and south. To the east is the Atlantic Ocean...

, in Argentine
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 Patagonia
Patagonia
Patagonia is a region located in Argentina and Chile, integrating the southernmost section of the Andes mountains to the southwest towards the Pacific ocean and from the east of the cordillera to the valleys it follows south through Colorado River towards Carmen de Patagones in the Atlantic Ocean...

. It comprises an area of 4459 km². In 1981 it was declared a World Heritage Site
World Heritage Site
A UNESCO World Heritage Site is a place that is listed by the UNESCO as of special cultural or physical significance...

 by UNESCO
UNESCO
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations...

.

The national park, created in 1937, is the second largest in Argentina. Its name refers to the giant ice cap
Ice cap
An ice cap is an ice mass that covers less than 50 000 km² of land area . Masses of ice covering more than 50 000 km² are termed an ice sheet....

 in the Andes
Andes
The Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...

 range that feeds 47 large glacier
Glacier
A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

s, of which only 13 flow towards the Atlantic Ocean
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

. The ice cap is the largest outside of Antarctica and Greenland
Greenland
Greenland is an autonomous country within the Kingdom of Denmark, located between the Arctic and Atlantic Oceans, east of the Canadian Arctic Archipelago. Though physiographically a part of the continent of North America, Greenland has been politically and culturally associated with Europe for...

. In other parts of the world, glaciers start at a height of at least 2,500 meters above mean sea level
Above mean sea level
The term above mean sea level refers to the elevation or altitude of any object, relative to the average sea level datum. AMSL is used extensively in radio by engineers to determine the coverage area a station will be able to reach...

, but due to the size of the ice cap, these glaciers begin at only 1,500m, sliding down to 200m AMSL, eroding the surface of the mountains that support them.

Geography

Los Glaciares, of which 30% is covered by ice, can be divided in two parts, each corresponding with one of the two elongated big lakes partially contained by the Park. Lake Argentino
Lake Argentino
Lago Argentino is a lake in the Patagonian , at . It is the biggest freshwater lake in Argentina, with a surface area of . It has an average depth of , and a maximum depth of ....

, 1,466 km² and the largest in Argentina, is in the south, while Lake Viedma
Lake Viedma
Viedma Lake , approximately 50 miles long in southern Patagonia near the border between Chile and Argentina...

, 1,100 km², is in the north. Both lakes feed the Santa Cruz River that flows down to Puerto Santa Cruz on the Atlantic. Between the two halves is a non-touristic zone without lakes called Zona Centro.

The northern half consists of part of Viedma Lake, the Viedma Glacier and a few minor glaciers, and a number of mountains very popular among fans of climbing and trekking, including Mount Fitz Roy
Cerro Chaltén
Monte Fitz Roy is a mountain located near El Chaltén village, in the Southern Patagonian Ice Field in Patagonia, on the border between Argentina and Chile...

 and Cerro Torre
Cerro Torre
Cerro Torre is one of the mountains of the Southern Patagonian Ice Field in South America. It is located in a region which is disputed between Argentina and Chile, west of Cerro Chalten . The peak is the highest in a four mountain chain: the other peaks are Torre Egger , Punta Herron, and Cerro...

.

The southern part has, as well as a number of smaller ones, the major glaciers which flow into Lake Argentino: Perito Moreno Glacier
Perito Moreno Glacier
The Perito Moreno Glacier is a glacier located in the Los Glaciares National Park in the south west of Santa Cruz province, Argentina. It is one of the most important tourist attractions in the Argentine Patagonia....

, Upsala Glacier
Upsala Glacier
The Upsala Glacier is a large valley glacier in Argentina's Los Glaciares National Park. It flows out from the Southern Patagonian Ice Field, which also feeds the nearby Perito Moreno Glacier. The terminus of the glacier is at Lago Argentino...

, and Spegazzini Glacier. Typical excursion boats travel between icebergs to visit Bahía Onelli, and the otherwise inaccessible Spegazzini and Upsala. The Perito Moreno is reachable by land.

Ecology

The mountains hold most of the humidity from the Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

, letting through only the ice coldness (annual average of 7.5 °C) and creating the arid Patagonian steppe on the Argentine side of the range. This area is habitat for ñandúes
Rhea (bird)
The rheas are ratites in the genus Rhea, native to South America. There are two existing species: the Greater or American Rhea and the Lesser or Darwin's Rhea. The genus name was given in 1752 by Paul Möhring and adopted as the English common name. Möhring's reason for choosing this name, from the...

, guanaco, cougar, and gray fox
Gray Fox
The gray fox is a mammal of the order Carnivora ranging throughout most of the southern half of North America from southern Canada to the northern part of South America...

, the latter who has suffered from the invasion of the cattle industry and are endangered. The guanaco, while not endangered, has had a dramatic decline in historic population due to large scale grazing of livestock throughout much of Patagonia. There are over 1000 species of birds in the area (condor
Condor
Condor is the name for two species of New World vultures, each in a monotypic genus. They are the largest flying land birds in the Western Hemisphere.They are:* The Andean Condor which inhabits the Andean mountains....

s, eagle
Eagle
Eagles are members of the bird family Accipitridae, and belong to several genera which are not necessarily closely related to each other. Most of the more than 60 species occur in Eurasia and Africa. Outside this area, just two species can be found in the United States and Canada, nine more in...

s, and others), but only 100 have been registered. Between the ice and the Patagonian steppe there is a fertile area of Magellanic subpolar forests
Magellanic subpolar forests
The Magellanic subpolar forests are a terrestrial ecoregion of southernmost South America, covering parts of southern Chile and Argentina, and is part of the Neotropic ecozone...

 composed mainly of lenga
Lenga Beech
Nothofagus pumilio is a deciduous tree or shrub in the Nothofagaceae family that is native to the southern Andes range, in the temperate forests of Chile and Argentina to Tierra del Fuego, from 35° to 56° South latitude. This tree is in the same genus as the Coihue. It regenerates easily after...

s and guindos, but also ñire
Nothofagus antarctica
Nothofagus antarctica , is a deciduous tree or shrub native to southern Chile and Argentina from about 36°S to Tierra del Fuego . The southernmost occurrence is on Hoste Island, making it the southernmost trees on earth...

s. Within these more hospitable areas also live huemul deer and Torrent Duck
Torrent Duck
The Torrent Duck is a member of the duck, goose and swan family Anatidae. It is the only member of the genus Merganetta. Today it is placed in the shelduck subfamily Tadorninae after the "perching duck" assemblage where it was formerly assigned to was dissolved because it turned out to be...

.

Human use

Los Glaciares is a major attraction for international tourists, and has an annual budget of one million dollars
United States dollar
The United States dollar , also referred to as the American dollar, is the official currency of the United States of America. It is divided into 100 smaller units called cents or pennies....

 (1994). Starting points of tours are the village of El Calafate
El Calafate
- Population :In the last census 6,143 permanent residents were counted . This represents a 20.1% increase compared with the 1991 census. However, due to the expansion of tourism, the population was estimated at 8,000 people in 2005.- Wildlife :...

 at the shore of Lake Argentino but outside the park, where the park's administration has its headquarters, and El Chaltén
El Chaltén
El Chaltén is a small mountain village in Santa Cruz Province, Argentina. It is located in the riverside of Río de las Vueltas, within the Los Glaciares National Park at the base of Cerro Torre and Cerro Fitz Roy mountains, both popular for climbing...

 village in the northern part of the park, at the foot of the Fitz Roy. Other touristic points in the park include Lago del Desierto and Lago Roca.

See also

  • National Parks of Argentina
    National Parks of Argentina
    The National Parks of Argentina make up a network of 30 national parks in Argentina. The parks cover a very varied set of terrains and biotopes, from Baritú National Park on the northern border with Bolivia to Tierra del Fuego National Park in the far south of the continent .The creation of the...

  • Tourism in Argentina
    Tourism in Argentina
    Tourism in Argentina is favored by its ample and varied natural assets and by its cultural offerings. The country is lucky to have everything a tourist would ask for...

  • Laguna San Rafael National Park
    Laguna San Rafael National Park
    Laguna San Rafael National Park is a park located on the Pacific coast of southern Chile. The park is named for the San Rafael Lagoon formed by the retreat of the San Rafael Glacier. Created in 1959, it covers an area of and includes the Northern Patagonian Ice Field...

  • Torres del Paine

External links



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