The

border Borders are usually defined as geographical boundaries, imposed either by features such as oceans and terrain, or by political entities such as governments, sovereign states, federated states, and other subnational entities. Political borders c ...

between

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

and

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

is long. The boundary was delimited in two treaties: *the

Vásquez Cobo-Martins treaty Vázquez (also spelled Vásquez, Vasques), in non-Spanish-speaking countries often spelled as Vazquez or Vasquez, is an originally Galician surname, in use not only in Galicia but all over the Spanish-speaking world. Overview To a lesser extent ...

of 1907, establishing the line from the Rio Negro northwestward along the

Amazon River The Amazon River (, ; es, Río Amazonas, pt, Rio Amazonas) in South America is the largest river by discharge volume of water in the world, and the disputed longest river system in the world in comparison to the Nile. The headwaters of t ...

Orinoco The Orinoco () is one of the longest rivers in South America at . Its drainage basin, sometimes known as the Orinoquia, covers , with 76.3 percent of it in Venezuela and the remainder in Colombia. It is the fourth largest river in the wor ...

watershed divide, "then generally southward along various river courses and straight-line segments to the mouth of the

Apaporis River The Apaporis River is a river of the Vaupés Department, Colombia. It is a tributary of the Caquetá or Japurá River. In the last stretch before the river joins the Caquetá it forms part of the boundary between Colombia and Brazil. See also ...

",Brazil-Colombia boundary
, International Boundary Study, April 15, 1985. and *the '' Tratado de Límites y Navegación Fluvial'' of 1928, delimiting the Apaporis-Amazon segment of the boundary as a "geodesic line identical to its Brazilian-Peruvian antecedent after Colombia gained undisputed sovereignty over the area".

Border towns

Tabatinga Tabatinga, originally Forte de São Francisco Xavier de Tabatinga, is a municipality in the Três Fronteiras area of Western Amazonas. It is in the Brazilian state of Amazonas. Its population was 67,182 (2020) and its area is 3,225 km2. To ...

Benjamin Constant Henri-Benjamin Constant de Rebecque (; 25 October 1767 – 8 December 1830), or simply Benjamin Constant, was a French people, Franco-Switzerland, Swiss political thinker, activist and writer on political theory and religion. A committed repub ...

, Lauarete, Vila Bittencourt, Ipiranga,

Cucui Cocuy () is a liquor distilled from the fermented juices of the head, body or leaves of ''Agave cocui'' ("green agave"),Diaz M. (2003) ''El Programa Agave: Ciencia y Tecnologia al servicio del hombre de las Zona Aridas''. Edic.FUNDACITE Falcon. ...

. *: Leticia,

Tarapacá San Lorenzo de Tarapacá, also known simply as Tarapacá, is a town in the region of the same name in Chile. History The town has likely been inhabited since the 12th century, when it formed part of the Inca trail. When Spanish explorer Diego d ...

, La Pedrera,

Mitú Mitú () is the capital town of the department of Vaupés in Colombia. It is a small town located in South eastern Colombia in the Amazon Basin. Founded in 1936, Mitú lies next to the Vaupés River at 180 meters above sea level. It is where the ...

Taraira Taraira is a town and municipality located in the Vaupés Department, Republic of Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Car ...

, Yavaraté,

La Guadalupe La Guadalupe () is a village and municipality in the Guainía Department, Colombia. La Guadalupe borders the corregimiento ''Corregimiento'' (; ca, Corregiment, ) is a Spanish term used for country subdivisions for royal administrative purpos ...

External links

Map of the border between Brasil and ColombiaGeodesic points of the border between Brasil and Colombia

References

Borders of Brazil Borders of Colombia International borders {{Colombia-geo-stub