Brazil–Colombia border

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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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