SCIENCETECH · HISTORICAL MARKER

45th Parallel

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This point lies on the 45th parallel, halfway between the Equator and the North Pole, and at longitude 71° 24' West from Greenwich, England. A line from here through the center of the earth would emerge in the Indian Ocean 982 miles southwest of Perth, Australia.
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Clarksville, New Hampshire · United States
Clarksville, New Hampshire
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