Argentina is the second largest country in South America after Brazil and the eighth largest country in the world. With the Andes forming its western border with Chile, the country's varied geography can be grouped into four geographic regions or sectors and seven natural regions or ecosystems.
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Bahuaja-Sonene National Park of Peru is part of the largest multinational tropical protected area in the world. It protects an area comprised of tropical rainforest, savanna, flooded grasslands, hills and mountains; harboring some of the wildest and least-impacted habitats in the world.
The Bañados del Este Biosphere Reserve comprises a remarkable complex of ecosystems and a vast complex of coastal wetlands. Together, these form a rich habitat for an assortment of wildlife, including myriad species that are categorized as near-threatened or endangered.
Colonia del Sacramento is located at the tip of a short peninsula with a strategic position on the north shore of Uruguay's Río de la Plata. The Historic Quarter is a fusion of Portuguese, Spanish and post-colonial styles. The buildings date from the 17th, 18th and 19th centuries.
The Shrine of Our Lady of Las Lajas is a Roman Catholic basilica church built inside the canyon of the Guáitara River. It has been a tourism and pilgrimage destination since the eighteenth century. The town of Ipiales sits on the banks of the Guáitara River, 9,500 ft above sea level.
One of the first protected areas to be established in Bolivia, the Beni Biosphere Reserve is located at the convergence of three biogeographical zones: the Amazon, the Chaco and the Cerrado. The reserve is home to important indigenous Amazonian groups.
The Beni River flows north through Bolivia after rising in the Andean slopes of the Cordillera Real. The Mamoré River is formed by numerous headwaters that drain the Llanos de Moxos. The two rivers join to form the Madeira River on the border with Brazil.
The Beni savanna is an ecoregion located in the Beni Department of northern Bolivia. Also known as the Llanos de Moxos, it is the third-largest savanna complex in South America and is found in the lowlands of the southwestern Amazon basin, extending northeast from the foot of the Andean ranges.
Bernardo O'Higgins National Park is currently the largest protected area in Chile. Along with Torres del Paine National Park, it occupies over 90% of the Southern Patagonian Icefield; the remainder of it, in Argentina, is included within Los Glaciares National Park.
The Bioma Pampa-Quebradas del Norte Biosphere Reserve is located in northern Uruguay and comprises a mosaic of different ecosystems, including a primary forest with subtropical jungle, the quebradas, which represents the southernmost vestige of the Atlantic Forest environment.
The Bolivian Andes is composed primarily of two ranges or cordilleras. The Cordillera Occidental is characterized by volcanic activity. The much older Cordillera Oriental, also known as the "Cordillera Real," is an impressive snow-capped series of granite mountains.