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Map of the Position of the U.S. Geographic Center of Area, Mean Center of Population, and Median Center of Population, 2020 (U.S. Census Bureau) [1] The geographic center of the United States is a point approximately 20 miles (32 km) north of Belle Fourche , South Dakota at 44°58′2.07622″N 103°46′17.60283″W / 44.9672433944°N ...
The exact geographic center of the U.S. Virgin Islands is unknown — the default center starting point for the U.S. Virgin Islands on Google Maps is located in the Caribbean Sea, [15] 18.21 miles (29.30 km) south-southeast of Saint Thomas and 18.31 miles (29.47 km) north of Saint Croix — note that this point is the approximate center of the ...
By total area (water as well as land), the United States is either slightly larger or smaller than the People's Republic of China, making it the world's third or fourth-largest country. Both countries are smaller than Russia and Canada in total area but are larger than Brazil. By land area only (exclusive of waters), the United States is the ...
Central America has adapted sloths, anteaters, and armadillos. Other animals includes the California condor, mostly found in California, the parrots and the monkeys of Tropical forests, the humming bird, rattlesnake, alligator, and Cayman of the banks of the streams, and swarms of mosquitoes on the wide plains.
The North American Datum of 1927 (NAD 27) was based on surveys of the entire continent from a common reference point that was chosen in 1901, because it was as near the center of the contiguous United States as could be calculated: It was based on a triangulation station at the junction of the transcontinental triangulation arc of 1899 on the ...
American Samoa is a U.S. territory located in the South Pacific Ocean in Polynesia, south of the equator — it is 2,200 miles (3,500 km) southwest of Hawaii. [28] In American Samoa, the contiguous United States is called the "mainland United States" or "the states"; those not from American Samoa are called palagi (outsiders). [29]
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. [60] The Great American Interchange resulted in many species being spread across the Americas, such as the cougar , porcupine , opossums , armadillos , and hummingbirds .
The center of population is the point at which an imaginary, weightless, rigid, and flat (no elevation effects) surface representation of the 50 states (or 48 conterminous states for calculations made prior to 1960) and the District of Columbia would balance if weights of identical size were placed on it so that each weight represented the ...