The meridian 171° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 171st meridian west forms a great circle with the 9th meridian
east.
Starting at the North
Pole and heading south to the South Pole, the 171st meridian west passes
through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| 90°0′N 171°0′W / 90°N 171°W | Arctic Ocean | |
| 71°50′N 171°0′W / 71.833°N 171°W | Chukchi Sea | |
| 66°32′N 171°0′W / 66.533°N 171°W | Chukchi Peninsula | |
| 65°29′N 171°0′W / 65.483°N 171°W | Bering Sea | |
| 63°35′N 171°0′W / 63.583°N 171°W | Alaska - St. Lawrence Island | |
| 63°25′N 171°0′W / 63.417°N 171°W | Bering Sea | Passing between the islands of Chagulak and Yunaska, Alaska, |
| 52°32′N 171°0′W / 52.533°N 171°W | Pacific Ocean | Passing just east of Enderbury
Island, Passing just west of Rawaki Island, Passing just east of Manra Island, Passing just east of Fakaofo atoll, Passing just east of Swains Island, Passing just west of the island of Tutuila, |
| 60°0′S 171°0′W / 60°S 171°W | Southern Ocean | |
| 78°29′S 171°0′W / 78.483°S 171°W | Antarctica | Ross
Dependency, claimed by |
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