The Ancomarca Plateau () is an elevated

plateau In geology and physical geography, a plateau (; ; : plateaus or plateaux), also called a high plain or a tableland, is an area of a highland consisting of flat terrain that is raised sharply above the surrounding area on at least one side. ...

around the

Bolivia Bolivia, officially the Plurinational State of Bolivia, is a landlocked country located in central South America. The country features diverse geography, including vast Amazonian plains, tropical lowlands, mountains, the Gran Chaco Province, w ...

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Chile Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...

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Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

tripoint A triple border, tripoint, trijunction, triple point, or tri-border area is a geography, geographical point at which the boundaries of three countries or Administrative division, subnational entities meet. There are 175 international tripoints ...

. It lies at 4,115 m asl. Villages in the plateau include Ancomarca in Peru,

Charaña Charaña is a high elevation town in the altiplano of the La Paz Department in Bolivia. It is the seat of the Charaña Municipality, the fifth municipal section of the Pacajes Province. Charaña is east of the border with Chile. History Cha ...

in Bolivia and

Visviri Visviri is a Chilean hamlet at the northern end of the country and the capital of the General Lagos commune in Parinacota Province, Arica and Parinacota Region. It is notable for being Chile's northernmost populated area, and for being near border ...

in Chile. In colonial times the area of the plateau was organized as an

ayllu The ''ayllu'', a family clan, is the traditional form of a community in the Andes, especially among Quechuas and Aymaras. They are an indigenous local government model across the Andes region of South America, particularly in Bolivia and Peru. ...

References

Altiplano Landforms of Arica y Parinacota Region Landforms of La Paz Department (Bolivia) Landforms of the Department of Tacna Plateaus of the Andes Plateaus of Bolivia Plateaus of Chile Plateaus of Peru {{Peru-geo-stub