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Cerro Aconcagua, often referred to as the "Stone Sentinel" ("Centinela de Piedra"), with its 6,962 meters (22,841 feet) is the highest peak of the Americas and the highest peak in the world outside of Asia. This giant towers all the neighboring five thousand meters peaks.

Some of the various challenges to climb the summit are : fog, altitude, cold and winds, especially the "Viento Blanco"; those very cold winds can blow at 180 kph (110 mph) and the temperature can drop down to -45°C (-50°F). The normal route is a non-technical climb, the main and only difficulty lies 350 meters below the summit, the «Canaleta» is a rocky couloir with an elevation gain of more than 350 meters (1,200 feet) and nearly 50% slope. Depending on the season you can have some compact snow neve making the ascent harder in some places; crampons, ice axes and ropes are then mandatory.

Being well acclimatized to the altitude and an excellent physical condition are the keys to reach the summit. About forty deadly accidents have been reported on the normal route, most of the victims having perished of cold and exhaustion, after getting lost on the mountain.

To carry out all my expeditions and prepare the "Solar Eclipses" tours around the world, I am looking for sponsoring and resellers. Every year on average 5,400 people visit the Aconcagua Provincial Park and 3,650 try reaching the summit.

Nowadays, the first thing a mountaineer does is check the Internet to find information on the recommended equipment and the various ways to prepare his expedition. Your sponsoring entitles you to get advertising space on my website with a link pointing to yours.

Your company logo will also be displayed on my equipment and will appear in the various media used. Thank you all in advance for your support and help.

 
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A delicate but boldly patterned finch. Long spiny crest usually laid back and crown black, contrasting with white cheeks and ear-coverts.

Face, throat and mid breast, continued over centre of belly black, contrasting with flanks and belly orangey buff. Silvery grey back; black wings and tail with pale wing coverts.

White in base of outer rectrices visible in flight. Female paler with brown tinge above and brown shorter crest.

Greyish face, eyebrow and underparts dull cinnamon buff.

Male unmistakable, and females pattern plus white in tail does not resemble other finches. Voice Song is a modest 3-syllabled phrase. Inconspicuous thin tzip-tzip call.

Hints In pairs or small groups somewhat inconspicuous in the vegetation cover or even on the ground.

Distribution and population:

Charitospiza eucosma occurs in north-east and central Brazil (central Piauí, south Maranhão and south-east Pará south through Goiás, west Bahia and central Minas Gerais to south-east Mato Grosso and central São Paulo), north-east Bolivia (Serranía de Huanchaca in Santa Cruz) and north-east Argentina (single records from Misiones in 1961 and, bizarrely, one recently collected in Tucumán). It can be uncommon to fairly common, but has a very local and erratic occurrence.



 
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Argentine Patagonia is for the most part a region of steppelike plains, rising in a succession of 13 abrupt terraces about 100 metres (330 ft) at a time, and covered with an enormous bed of shingle almost bare of vegetation.

 In the hollows of the plains are ponds or lakes of fresh and brackish water. Towards the Andes the shingle gives place to porphyry, granite, and basalt lavas, animal life becomes more abundant and vegetation more luxuriant, acquiring the characteristics of the flora of the western coast, and consisting principally of southern beech and conifers.

The high rainfall against the western Andes (Wet Andes) and the low sea surface temperatures offshore give rise to cold and humid air masses, contributing to the ice-fields and glaciers, the largest ice-fields in the Southern hemisphere outside of Antarctica.

Among the depressions by which the plateau is intersected transversely, the principal are the Gualichu, south of the Río Negro, the Maquinchao and Valcheta (through which previously flowed the waters of Nahuel Huapi Lake, which now feed the river Limay); the Senguerr (spelled Senguer on most Argentine maps and within the corresponding region), the Deseado River.

Besides these transverse depressions (some of them marking lines of ancient inter-oceanic communication), there are others which were occupied by more or less extensive lakes, such as the Yagagtoo, Musters and Colhue Huapi, and others situated to the south of Puerto Deseado, in the centre of the country.
 
In the central region volcanic eruptions, which have taken part in the formation of the plateau from the Tertiary period down to the present era, cover a large part with basaltic lava-caps; and in the western third more recent glacial deposits appear above the lava.

There, in contact with folded Cretaceous rocks, uplifted by the Tertiary granite, erosion, caused principally by the sudden melting and retreat of the ice, aided by tectonic changes, has scooped out a deep longitudinal depression, which generally separates the plateau from the first lofty hills, the ridges generally called the pre-Cordillera, while on the west of these there is a similar longitudinal depression all along the foot of the snowy Andean Cordillera.

This latter depression contains the richest and most fertile land of Patagonia. Lake basins along the Cordillera were also excavated by ice-streams, including Lake Argentino and Lake Fagnano, as well as coastal bays such as Bahía Inútil.

 
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The Campo de los Alisos National Park (Spanish: Parque Nacional Campo de los Alisos) is a national park of Argentina, located in the Chicligasta Department, province of Tucumán. It has an area of 100 square kilometres.

This national park was created in order to protect a representative sample of the montanos jungle and forest ecosystem. Annual rainfall here oscillates between 100 and 200 mm.

The park is located on the eastern slope of the Nevados del Aconquija. The Aconquija mountains are the southern extension of the Calchaquíes Valleys, the western first steps raising from the Chaco-Pampean plain.

Flora and fauna vary considerably with the different heights, from a jungle at lower levels to snow-covered mountainous terrain at 5,000 m.

The Aconquija mountain rain is the southern extension of the “Calchaquíes” summits. It is the first west mountainous step of the “chacopampeana” plain.

 The Campo de Los Alisos National Park is located on the “Nevados del Aconquija” eastern slope. Its peaks limits with Catamarca Province, between the “Las Pavas” river –in the north- and the “Jaya” river –in the south-. Its most important height is in the “La Bolsa” hill.


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