Triángulo Dionisio Foianini (Dionisio Foianini Triangle) is the name given to a small area of land in southeastern

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 ...

, between its borders with Brazil and Paraguay. Its importance lies in the fact that part of the border is marked by the

Paraguay River The Paraguay River (''Ysyry Paraguái'' in Guarani language, Guarani, ''Rio Paraguai'' in Portuguese language, Portuguese, ''Río Paraguay'' in Spanish language, Spanish) is a major river in south-central South America, running through Brazil, Bol ...

and, as a result, Bolivia has a water route to the Atlantic Ocean that does not involve Brazil. The border was finalised on 21 June 1938 during the Chaco Peace Conference in

Buenos Aires Buenos Aires, controlled by the government of the Autonomous City of Buenos Aires, is the Capital city, capital and largest city of Argentina. It is located on the southwest of the Río de la Plata. Buenos Aires is classified as an Alpha− glob ...

Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...

. Consequently, Bolivia is planning on building a major port at the

Puerto Busch Puerto Busch is a Bolivian locality in the province of Germán Busch, Santa Cruz Department, on the Paraguay River, in southeastern Bolivia. It is named in honor of General Germán Busch, who fought in the Chaco War. The area, actually a corri ...

within the triangle. Currently Bolivian ships must pass along the eleven kilometre Tamengo Canal which connects

Laguna Cáceres Laguna (Italian and Spanish word for lagoon), is a Spanish, Italian, and Polish surname. It may also refer to: People * Andrés Laguna (1499–1559), Spanish physician, pharmacologist, and botanist * Benjamín Máximo Laguna y Villanueva (1822� ...

to the

at the Brazilian city of

Corumbá Corumbá () is a municipality in the Brazilian state of Mato Grosso do Sul, 425 km northwest of Campo Grande, the state's capital. It has a population of approximately 112,000 inhabitants, and its economy is based mainly on agriculture, ani ...

References

{{coord, 20, 00, S, 58, 00, W, region:BO_type:waterbody_source:kolossus-eswiki, display=title Geography of Bolivia Bolivia–Brazil border Bolivia–Paraguay border