109th meridian west
# 109th meridian west

The meridian 109° 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 109th meridian west forms a great circle with the 71st meridian east.

In the United States, the western boundaries of Colorado and New Mexico and the eastern boundaries of Utah and Arizona lie on the 32nd meridian west from Washington, which is approximately 3 minutes of longitude west of the 109th meridian west of Greenwich, or approximately 2.5 mi (4.0 km).

## From pole to pole

Starting at the North Pole and heading south to the South Pole, the 109th meridian west passes through:

    Co-ordinates Country, territory or sea Notes 90°0′N 109°0′W﻿ / ﻿90.000°N 109.000°W﻿ / 90.000; -109.000﻿ (Arctic Ocean) Arctic Ocean Passing just east of Borden Island, Nunavut, Canada (at 78°28′N 109°13′W﻿ / ﻿78.467°N 109.217°W﻿ / 78.467; -109.217﻿ (Borden Island)) Passing just east of Vesey Hamilton Island, Nunavut, Canada (at 76°54′N 109°2′W﻿ / ﻿76.900°N 109.033°W﻿ / 76.900; -109.033﻿ (Vesey Hamilton Island)) 76°49′N 109°0′W﻿ / ﻿76.817°N 109.000°W﻿ / 76.817; -109.000﻿ (Canada) Canada Nunavut — Melville Island 75°53′N 109°0′W﻿ / ﻿75.883°N 109.000°W﻿ / 75.883; -109.000﻿ (Sabine Bay) Sabine Bay 75°29′N 109°0′W﻿ / ﻿75.483°N 109.000°W﻿ / 75.483; -109.000﻿ (Canada) Canada 74°59′N 109°0′W﻿ / ﻿74.983°N 109.000°W﻿ / 74.983; -109.000﻿ (Parry Channel) Parry Channel Viscount Melville Sound 72°46′N 109°0′W﻿ / ﻿72.767°N 109.000°W﻿ / 72.767; -109.000﻿ (Canada) Canada Nunavut — Victoria Island 68°44′N 109°0′W﻿ / ﻿68.733°N 109.000°W﻿ / 68.733; -109.000﻿ (Dease Strait) Dease Strait 68°19′N 109°0′W﻿ / ﻿68.317°N 109.000°W﻿ / 68.317; -109.000﻿ (Bathurst Inlet) Bathurst Inlet 68°0′N 109°0′W﻿ / ﻿68.000°N 109.000°W﻿ / 68.000; -109.000﻿ (Canada) Canada Nunavut — Lewes Island, the Stockport Islands and the mainland Northwest Territories — from 64°48′N 109°13′W﻿ / ﻿64.800°N 109.217°W﻿ / 64.800; -109.217﻿ (Northwest Territories), passing through the Great Slave Lake Saskatchewan — from 60°0′N 109°13′W﻿ / ﻿60.000°N 109.217°W﻿ / 60.000; -109.217﻿ (Saskatchewan), passing through Lake Athabasca 49°0′N 109°0′W﻿ / ﻿49.000°N 109.000°W﻿ / 49.000; -109.000﻿ (United States) United States Montana Wyoming — from 45°0′N 109°13′W﻿ / ﻿45.000°N 109.217°W﻿ / 45.000; -109.217﻿ (Wyoming) Colorado — from 41°0′N 109°13′W﻿ / ﻿41.000°N 109.217°W﻿ / 41.000; -109.217﻿ (Colorado) New Mexico — from 37°0′N 109°13′W﻿ / ﻿37.000°N 109.217°W﻿ / 37.000; -109.217﻿ (New Mexico) 31°20′N 109°0′W﻿ / ﻿31.333°N 109.000°W﻿ / 31.333; -109.000﻿ (Mexico) Mexico Sonora Sonora / Chihuahua border — from 28°17′N 109°13′W﻿ / ﻿28.283°N 109.217°W﻿ / 28.283; -109.217﻿ (Sonora/Chuhuahua border) Sonora — from 28°0′N 109°13′W﻿ / ﻿28.000°N 109.217°W﻿ / 28.000; -109.217﻿ (Sonora) Sinaloa — from 26°26′N 109°13′W﻿ / ﻿26.433°N 109.217°W﻿ / 26.433; -109.217﻿ (Sinaloa), passing through Los Mochis 25°26′N 109°0′W﻿ / ﻿25.433°N 109.000°W﻿ / 25.433; -109.000﻿ (Pacific Ocean) Pacific Ocean Passing just east of Clipperton Island (an overseas possession of France, at 10°17′N 109°12′W﻿ / ﻿10.283°N 109.200°W﻿ / 10.283; -109.200﻿ (Clipperton Island)) Passing just east of Easter Island, Chile (at 27°6′S 109°14′W﻿ / ﻿27.100°S 109.233°W﻿ / -27.100; -109.233﻿ (Clipperton Island)) 60°0′S 109°0′W﻿ / ﻿60.000°S 109.000°W﻿ / -60.000; -109.000﻿ (Southern Ocean) Southern Ocean 73°29′S 109°0′W﻿ / ﻿73.483°S 109.000°W﻿ / -73.483; -109.000﻿ (Antarctica) Antarctica Unclaimed territory
