The meridian 98° west 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 98th meridian west forms a great circle with the 82nd meridian east.
Starting at the North Pole and heading south to the South Pole, the 98th meridian west passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | Passing just west of the Fay Islands, Nunavut, (at) | |
| Nunavut — Amund Ringnes Island | ||
| Hassel Sound | ||
| Unnamed waterbody | ||
| Nunavut — Loney Island and Bathurst Island | ||
| Parry Channel | Passing just east of Garrett Island, Nunavut, (at) Passing just west of Lowther Island, Nunavut, (at) | |
| Nunavut — Russell Island and Prince of Wales Island | ||
| Larsen Sound | ||
| Nunavut — King William Island | ||
| Simpson Strait | ||
| Nunavut Manitoba — from, passing through Lake Winnipeg | ||
| North Dakota South Dakota — from Nebraska — from Kansas — from Oklahoma — from Texas — from, passing through the West Pole in Bee Cave, Texas | ||
| Tamaulipas Veracruz — from Hidalgo — from Puebla — from Tlaxcala — from Puebla — from Oaxaca — from | ||
| Pacific Ocean | ||
| Southern Ocean | ||
| Antarctica | Unclaimed territory | |
In his classic study of the Great Plains, Walter Prescott Webb described the 98th meridian as the dividing line between the arid western United States and the humid eastern United States:[1] [2]
As one contrasts the civilization of the Great Plains with that of the eastern timberland, one sees what may be called an institutional fault (comparable to a geological fault) running from middle Texas to Illinois or Dakota, roughly following the ninety-eighth meridian. At this fault the ways of life and of living changed. Practically every institution that was carried across it was either broken and remade or else greatly altered.More commonly, the 100th meridian is cited as the approximate dividing line, following the earlier observations of John Wesley Powell in the late 1800s.[1]