The maritime boundary between Argentina and Chile is composed of a 1977 Arbitral Award defining the boundary in the Beagle Channel and a 1984 bilateral Agreement extending the boundary out to 200 nautical miles (M) from Chile’s relevant coastal base points. From point F, located at Argentina’s 200 M limit, the boundary continues on a due south bearing until it reaches Chile’s 200 M limit. In doing so, the boundary leaves a sizeable maritime area on Argentina’s side of the boundary that is beyond their 200 M reach but within Chile’s 200 M reach. This “grey area” appears to have been ceded to the high seas by Chile as part of the 1984 Agreement.

map of the southern most maritime boundary in the world, between Chile and Argentina

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