The meridian 123° 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.
123rd meridian west
The 123rd meridian west forms a great circle with the 57th meridian east.
From Pole to Pole
editStarting at the North Pole and heading south to the South Pole, the 123rd meridian west passes through: