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The meridian 100° west of the Prime Meridian of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole. The 100th meridian west forms a great circle with the 80th meridian east.
Wheeler led early expeditions from 1869 to 1871 in the West, and in 1872 the United States Congress authorized an ambitious plan to map the portion of the United States west of the 100th meridian at a scale of eight miles to the inch. This plan necessitated what became known as the Wheeler Survey.
The meridian 100° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole. The 100th meridian east forms a great circle with the 80th meridian west .
Figure 1. This BLM map depicts the principal meridians and baselines used for surveying states (colored) in the PLSS.. The following are the principal and guide meridians and base lines of the United States, with the year established and a brief summary of what areas' land surveys are based on each.
100th meridian may refer to: 100th meridian east, a line of longitude east of the Greenwich Meridian; 100th meridian west, a line of longitude west of the Greenwich ...
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The term Great American Desert was used in the 19th century to describe the part of North America east of the Rocky Mountains to approximately the 100th meridian. [2] It can be traced to Stephen H. Long's 1820 scientific expedition which put the Great American Desert on the map. [3] [4]
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