You can help expand this article with text translated from the corresponding article in Spanish. (May 2020) Click [show] for important translation instructions. View a machine-translated version of the Spanish article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Spanish Wikipedia article at [[:es:Frontera entre Brasil y Colombia]]; see its history for attribution. You may also add the template {{Translated|es|Frontera entre Brasil y Colombia}} to the talk page. For more guidance, see Wikipedia:Translation.

The border between Brazil and Colombia is 1,644.2 km (1,021.7 mi) long. The boundary was delimited in two treaties:

• the Vásquez Cobo-Martins treaty of 1907, establishing the line from the Rio Negro northwestward along the Amazon River- Orinoco watershed divide, "then generally southward along various river courses and straight-line segments to the mouth of the Apaporis River", ^[1] 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". ^[1]

•   Brazil: Tabatinga, Benjamin Constant, Lauarete, Vila Bittencourt, Ipiranga, Cucui.
•   Colombia: Leticia, Tarapacá, La Pedrera, Mitú, Taraira, Yavaraté, La Guadalupe.

• Map of the border between Brasil and Colombia
• Geodesic points of the border between Brasil and Colombia
• Health and Displacement at the border between Brasil and Colombia

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