The meridian 118° 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.
118°W is the Sixth Meridian of the Dominion Land Survey in Canada.
The 118th meridian west forms a great circle with the 62nd meridian east.
118th meridian west Wikipedia
Starting at the North Pole and heading south to the South Pole, the 118th meridian west passes through: