Mapuche language in the context of "Lake Buenos Aires"

Aymara (Aymara pronunciation: [ajˈmaɾa] ; also Aymar aru) is an Aymaran language spoken by the Aymara people of the Bolivian Andes. It is one of only a handful of Native American languages with over one million speakers. Aymara, along with Spanish and Quechua, is an official language in Bolivia and Peru. It is also spoken, to a much lesser extent, by some communities in northern Chile and northern Argentina, where it is a recognized minority language.

Academic sources confirm that Aymara is spoken in Argentina, particularly in the provinces of Jujuy and Salta. Aymara is recognized as one of the indigenous language families within the country, often grouped alongside others such as Quechua, Mapuche, and Guaraní. The University of Arizona identifies the Kolla people, who speak Aymara, as having a significant presence in these provinces.

The Very Large Telescope (VLT) is an astronomical facility operated since 1998 by the European Southern Observatory, located on Cerro Paranal in the Atacama Desert of northern Chile. It consists of four individual telescopes, each equipped with a primary mirror that measures 8.2 metres (27 ft) in diameter. These optical telescopes, named Antu, Kueyen, Melipal, and Yepun (all words for astronomical objects in the Mapuche language), are generally used separately but can be combined to achieve a very high angular resolution. The VLT array is also complemented by four movable Auxiliary Telescopes (ATs) with 1.8-metre (5.9 ft) apertures.

The VLT is capable of observing both visible and infrared wavelengths. Each individual telescope can detect objects that are roughly four billion times fainter than what can be seen with the naked eye. When all the telescopes are combined, the facility can achieve an angular resolution of approximately 0.002 arcsecond. In single telescope mode, the angular resolution is about 0.05 arcseconds.

Fitzroya is a monotypic genus in the cypress family. The single living species, Fitzroya cupressoides, is a tall, long-lived conifer native to the Andes mountains and coastal regions of southern Chile, and only to the Argentine Andes, where it is an important member of the Valdivian temperate forests. Common names include lawal (in Mapudungun, Hispanicized as lahual), alerce ([aˈleɾse], "larch" in Spanish), and Patagonian cypress. The genus was named in honour of Robert FitzRoy.

The genus is ancient with it dating back to the Cretaceous of South America. Fossils are also known from the Paleogene of Tasmania, Australia (particularly from the now extinct Fitzroya tasmanensis).

Río Negro (Spanish pronunciation: [ˈri.o ˈneɣɾo]; Black River) is the main river of Patagonia in terms of the size of its drainage basin, its associated agricultural produce and population living at its shores. In eastern Patagonia it is also the largest by flow rate. The river flows through the Argentine province of Río Negro which is named after it. Its name comes from the literal translation of the Mapuche term Curu Leuvu, although the water is more green than black. Formerly, it was also known as "river of the willows" because of the big number of weeping willows that grow along the bank. It is 635 km in length.

It originates from the junction of the Limay River and Neuquén River at the border with the Neuquén Province, and flows southeast incised through steppes to the Atlantic Ocean at 41°01′20″S 62°47′25″W / 41.0223°S 62.7903°W / -41.0223; -62.7903, near El Cóndor beach resort some 30 km (19 mi) downstream from Viedma, Río Negro province's capital.

San Carlos de Bariloche (from the Mapuche name Vuriloche, meaning "people from the other side of the mountain"), commonly known simply as Bariloche (Spanish pronunciation: [baɾiˈlotʃe]), is the largest city in the Argentine province of Río Negro and the seat of the department of the same name. It is located in the foothills of the Patagonian Andes on the southern shore of Nahuel Huapi Lake, near the border with Chile. With a population of 135,755 according to the 2022 census, Bariloche is a mid-sized city by national standards but holds significant regional importance. It is not only the most populous city in its province but also the largest in the Patagonian Andes, and the third largest in the entire Argentine Patagonia, following Neuquén and Comodoro Rivadavia. Its urban zone is characterized by its low density and has an area of more than 220 square kilometres (85 sq mi), extending longitudinally from east to west for about 50 kilometres (31 mi).

Bariloche's economy is strongly based on tourism; it is the country's third most visited destination after Buenos Aires and Mar del Plata. It is the most popular city in all of Patagonia. It attracts visitors year-round for its scenic natural setting including Nahuel Huapi National Park and other reserves, offering a range of activities such as skiing in winter and water sports and hiking in summer, alongside diverse accommodations and dining options. The nearby Cerro Catedral is the largest ski resort in South America.