170th meridian west
The meridian 170° 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 170th meridian west forms a great circle with the 10th meridian east.
From Pole to Pole
Starting at the North Pole and heading south to the South Pole, the 170th meridian west passes through:
Co-ordinates Country, territory or sea Notes 90°0′N 170°0′W / 90.000°N 170.000°W / 90.000; -170.000 (Arctic Ocean) Arctic Ocean 71°50′N 170°0′W / 71.833°N 170.000°W / 71.833; -170.000 (Chukchi Sea) Chukchi Sea 66°33′N 170°0′W / 66.550°N 170.000°W / 66.550; -170.000 (Bering Sea) Bering Sea 66°11′N 170°0′W / 66.183°N 170.000°W / 66.183; -170.000 (Russia) Russia Chukotka Autonomous Okrug — Chukchi Peninsula 66°2′N 170°0′W / 66.033°N 170.000°W / 66.033; -170.000 (Bering Sea) Bering Sea 63°28′N 170°0′W / 63.467°N 170.000°W / 63.467; -170.000 (United States) United States Alaska — St. Lawrence Island 63°9′N 170°0′W / 63.150°N 170.000°W / 63.150; -170.000 (Bering Sea) Bering Sea Passing just east of St. Paul Island, Alaska, United States (at 57°14′N 170°5′W / 57.233°N 170.083°W / 57.233; -170.083 (St. Paul Island))
Passing just west of St. George Island, Alaska, United States (at 56°36′N 169°46′W / 56.600°N 169.767°W / 56.600; -169.767 (St. George Island))52°54′N 170°0′W / 52.900°N 170.000°W / 52.900; -170.000 (United States) United States Alaska — Carlisle Island and Chuginadak Island 52°48′N 170°0′W / 52.800°N 170.000°W / 52.800; -170.000 (Pacific Ocean) Pacific Ocean Passing just west of Niue (at 19°4′S 169°57′W / 19.067°S 169.950°W / -19.067; -169.950 (Niue)) 60°0′S 170°0′W / 60.000°S 170.000°W / -60.000; -170.000 (Southern Ocean) Southern Ocean 78°29′S 170°0′W / 78.483°S 170.000°W / -78.483; -170.000 (Antarctica) Antarctica Ross Dependency, claimed by New Zealand