- 100th meridian west
The meridian 100° west of Greenwich is a line of
longitudethat extends from the North Poleacross the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarcticato the South Pole.
Starting at the
North Poleand heading south to the South Pole, the 100th meridian west passes through:
United Statesthe meridian 100° west of Greenwich forms the eastern border of the Texas panhandlewith Oklahoma(which traces its origin to the Adams-Onís Treatyin 1819 which settled the border between New Spainand the United States between the Red River and Arkansas River).
In the central
Great Plains, the meridian roughly marks the western boundary of the normal reach of moist air from the Gulf of Mexico. The type of agriculturewest of the meridian typically relies heavily on irrigation. Historically the meridian has often been taken as a rough boundary between the eastern and western United States. White settlement, spreading westward after the American Civil War, encroached in the meridian in the 1870s.
A sign across
U.S. Highway 30in Cozad, Nebraskaprominently marks the place where the meridian intersects the routes of the Oregon Trail, Pony Express, transcontinental railroad, and the Lincoln Highway. Wallace Stegner's "Beyond the Hundredth Meridian" (1954), is a biography of John Wesley Powell, an explorer of the American West.The song "At the Hundredth Meridian" by The Tragically Hipis about the 100th meridian west, specifically in Canada, and how it has traditionally been considered "where the great plains begin."
Rain follows the plow
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