# 105th meridian west

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The meridian 105° 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 105th meridian west forms a great circle with the 75th meridian east.
It serves as the reference meridian for the seventh time zone west of Greenwich, known as UTC-07 or the Mountain Time Zone in North America.
In the United States, Interstate Highway I-25 roughly parallels the meridian from Douglas, Wyoming to Las Vegas, New Mexico, and from Wellington, Colorado to the Prospect Road interchange (in Fort Collins, Colorado), I-25 happens to be almost exactly aligned along the 105th meridian west. The meridian bisects Denver, Colorado, passing through Denver Union Station. Throughout the Denver metro area, Kalamath Street is the road that most closely corresponds to the 105th meridian.

## From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 105th meridian west passes through:
    Co-ordinates Country, territory or sea Notes 90°0′N 105°0′W﻿ / ﻿90.000°N 105.000°W﻿ / 90.000; -105.000﻿ (Arctic Ocean) Arctic Ocean 79°19′N 105°0′W﻿ / ﻿79.317°N 105.000°W﻿ / 79.317; -105.000﻿ (Canada)  Canada Nunavut — Ellef Ringnes Island 79°2′N 105°0′W﻿ / ﻿79.033°N 105.000°W﻿ / 79.033; -105.000﻿ (Arctic Ocean) Arctic Ocean 78°31′N 105°0′W﻿ / ﻿78.517°N 105.000°W﻿ / 78.517; -105.000﻿ (Canada)  Canada Nunavut — Ellef Ringnes Island 78°29′N 105°0′W﻿ / ﻿78.483°N 105.000°W﻿ / 78.483; -105.000﻿ (Maclean Strait) Maclean Strait 77°32′N 105°0′W﻿ / ﻿77.533°N 105.000°W﻿ / 77.533; -105.000﻿ (Canada)  Canada Nunavut — Lougheed Island 77°10′N 105°0′W﻿ / ﻿77.167°N 105.000°W﻿ / 77.167; -105.000﻿ (Byam Martin Channel) Byam Martin Channel 75°35′N 105°0′W﻿ / ﻿75.583°N 105.000°W﻿ / 75.583; -105.000﻿ (Byam Channel) Byam Channel Passing just west of Byam Martin Island, Nunavut, Canada (at 75°7′N 104°54′W﻿ / ﻿75.117°N 104.900°W﻿ / 75.117; -104.900﻿ (Byam Martin Island)) 75°5′N 105°0′W﻿ / ﻿75.083°N 105.000°W﻿ / 75.083; -105.000﻿ (Parry Channel) Parry Channel Viscount Melville Sound 73°43′N 105°0′W﻿ / ﻿73.717°N 105.000°W﻿ / 73.717; -105.000﻿ (Canada)  Canada Nunavut — Stefansson Island 73°0′N 105°0′W﻿ / ﻿73.000°N 105.000°W﻿ / 73.000; -105.000﻿ (M'Clintock Channel) M'Clintock Channel 72°12′N 105°0′W﻿ / ﻿72.200°N 105.000°W﻿ / 72.200; -105.000﻿ (Canada)  Canada Nunavut — Victoria Island 68°53′N 105°0′W﻿ / ﻿68.883°N 105.000°W﻿ / 68.883; -105.000﻿ (Queen Maud Gulf) Queen Maud Gulf 68°35′N 105°0′W﻿ / ﻿68.583°N 105.000°W﻿ / 68.583; -105.000﻿ (Canada)  Canada Nunavut — Melbourne Island and the mainland Northwest Territories — from 64°29′N 105°0′W﻿ / ﻿64.483°N 105.000°W﻿ / 64.483; -105.000﻿ (Northwest Territories) Saskatchewan — from 60°0′N 105°0′W﻿ / ﻿60.000°N 105.000°W﻿ / 60.000; -105.000﻿ (Saskatchewan) 49°0′N 105°0′W﻿ / ﻿49.000°N 105.000°W﻿ / 49.000; -105.000﻿ (United States)  United States Montana Wyoming — from 45°0′N 105°0′W﻿ / ﻿45.000°N 105.000°W﻿ / 45.000; -105.000﻿ (Wyoming) Colorado — from 41°0′N 105°0′W﻿ / ﻿41.000°N 105.000°W﻿ / 41.000; -105.000﻿ (Colorado), passing through Denver (at 39°45′N 105°0′W﻿ / ﻿39.750°N 105.000°W﻿ / 39.750; -105.000﻿ (Denver)) New Mexico — from 37°0′N 105°0′W﻿ / ﻿37.000°N 105.000°W﻿ / 37.000; -105.000﻿ (New Mexico) Texas — from 32°0′N 105°0′W﻿ / ﻿32.000°N 105.000°W﻿ / 32.000; -105.000﻿ (Texas) 30°40′N 105°0′W﻿ / ﻿30.667°N 105.000°W﻿ / 30.667; -105.000﻿ (Mexico)  Mexico Chihuahua Durango — from 26°30′N 105°0′W﻿ / ﻿26.500°N 105.000°W﻿ / 26.500; -105.000﻿ (Durango) Nayarit — from 22°56′N 105°0′W﻿ / ﻿22.933°N 105.000°W﻿ / 22.933; -105.000﻿ (Nayarit) Jalisco — from 20°55′N 105°0′W﻿ / ﻿20.917°N 105.000°W﻿ / 20.917; -105.000﻿ (Jalisco) 19°21′N 105°0′W﻿ / ﻿19.350°N 105.000°W﻿ / 19.350; -105.000﻿ (Pacific Ocean) Pacific Ocean Passing just east of Isla Salas y Gómez, Chile (at 26°28′S 105°21′W﻿ / ﻿26.467°S 105.350°W﻿ / -26.467; -105.350﻿ (Isla Salas y Gómez)) 60°0′S 105°0′W﻿ / ﻿60.000°S 105.000°W﻿ / -60.000; -105.000﻿ (Southern Ocean) Southern Ocean 74°41′S 105°0′W﻿ / ﻿74.683°S 105.000°W﻿ / -74.683; -105.000﻿ (Antarctica) Antarctica Unclaimed territory