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The border between North America and South America is at some point on the Darién Mountains watershed that divides along the Colombia–Panama border where the isthmus meets the South American continent (see Darién Gap). Virtually all atlases list Panama as a state falling entirely within North America and/or Central America. [116] [117]
The Continental Divide in North America in red and other drainage divides in North America The Continental Divide in Central America and South America. The Continental Divide of the Americas (also known as the Great Divide, the Western Divide or simply the Continental Divide; Spanish: Divisoria continental de las Américas, Gran Divisoria) is the principal, and largely mountainous ...
The Pan-American Highway is a system of roads measuring about 30,000 km (19,000 mi) [14] in length that runs north–south through the entirety of North, Central and South America, with the sole exception of a 106 km (66 mi) stretch of marshland and mountains between Panama and Colombia known as the Darién Gap.
The gaps in the archipelago of Central America filled in with material eroded off North America and South America, plus new land created by continued volcanism. By three million years ago, the continents of North America and South America were linked by the Isthmus of Panama, thereby forming the single landmass of the Americas. [58]
Central America—the narrow southern portion of mainland North America connecting with South America, extending from the Isthmus of Tehuantepec to the Isthmus of Panama; alternatively, the Trans-Mexican Volcanic Belt may delimit the region on the north. [5] [6]
Central America is a part of North America consisting of a tapering isthmus running from the southern extent of Mexico to the northwestern portion of South America. Central America has the Gulf of Mexico , a body of water within the Atlantic Ocean , to the north; the Caribbean Sea, also part of the Atlantic Ocean, to the northeast; and the ...
The Great American Interchange in which land and freshwater fauna migrated between North America and South America via the uplifted western margin of the Caribbean plate (Central America) was a later event, which peaked dramatically around 2.6 million years ago during the Piacenzian age.
In North America, the Rocky Mountains mark the eastern border of the Pacific Slope. In Central and South America, the region is much narrower, confined by the Sierra Madre Occidental in Central America, [1] [2] and by the Andes in South America. [3]