# 112th meridian west

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The meridian 112° 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 112th meridian west forms a great circle with the 68th meridian east.
Within the United States, it passes directly through the capital cities of three states (Arizona, Montana, and Utah).

## From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 112th meridian west passes through:
    Co-ordinates Country, territory or sea Notes 90°0′N 112°0′W﻿ / ﻿90.000°N 112.000°W﻿ / 90.000; -112.000﻿ (Arctic Ocean) Arctic Ocean 78°33′N 112°0′W﻿ / ﻿78.550°N 112.000°W﻿ / 78.550; -112.000﻿ (Canada)  Canada Northwest Territories — Borden Island 78°21′N 112°0′W﻿ / ﻿78.350°N 112.000°W﻿ / 78.350; -112.000﻿ (Wilkins Strait) Wilkins Strait 78°2′N 112°0′W﻿ / ﻿78.033°N 112.000°W﻿ / 78.033; -112.000﻿ (Canada)  Canada Northwest Territories — Mackenzie King Island 77°20′N 112°0′W﻿ / ﻿77.333°N 112.000°W﻿ / 77.333; -112.000 Unnamed waterbody 76°0′N 112°0′W﻿ / ﻿76.000°N 112.000°W﻿ / 76.000; -112.000﻿ (Canada)  Canada Northwest Territories — Melville Island 75°9′N 112°0′W﻿ / ﻿75.150°N 112.000°W﻿ / 75.150; -112.000﻿ (Liddon Gulf) Liddon Gulf 75°1′N 112°0′W﻿ / ﻿75.017°N 112.000°W﻿ / 75.017; -112.000﻿ (Canada)  Canada Northwest Territories — Melville Island 74°28′N 112°0′W﻿ / ﻿74.467°N 112.000°W﻿ / 74.467; -112.000﻿ (Parry Channel) Parry Channel Viscount Melville Sound 72°53′N 112°0′W﻿ / ﻿72.883°N 112.000°W﻿ / 72.883; -112.000﻿ (Canada)  Canada Northwest Territories — Victoria Island Nunavut — from 70°0′N 112°0′W﻿ / ﻿70.000°N 112.000°W﻿ / 70.000; -112.000﻿ (Nunavut) on Victoria Island 68°31′N 112°0′W﻿ / ﻿68.517°N 112.000°W﻿ / 68.517; -112.000﻿ (Coronation Gulf) Coronation Gulf 68°14′N 112°0′W﻿ / ﻿68.233°N 112.000°W﻿ / 68.233; -112.000﻿ (Canada)  Canada Nunavut — Duke of York Archipelago 68°10′N 112°0′W﻿ / ﻿68.167°N 112.000°W﻿ / 68.167; -112.000﻿ (Coronation Gulf) Coronation Gulf 67°45′N 112°0′W﻿ / ﻿67.750°N 112.000°W﻿ / 67.750; -112.000﻿ (Canada)  Canada Nunavut Northwest Territories — from 65°30′N 112°0′W﻿ / ﻿65.500°N 112.000°W﻿ / 65.500; -112.000﻿ (Northwest Territories), passing through the Great Slave Lake Alberta — from 60°0′N 112°0′W﻿ / ﻿60.000°N 112.000°W﻿ / 60.000; -112.000﻿ (Alberta) 49°0′N 112°0′W﻿ / ﻿49.000°N 112.000°W﻿ / 49.000; -112.000﻿ (United States)  United States Montana, passing through Helena at 46°37′N 112°0′W﻿ / ﻿46.617°N 112.000°W﻿ / 46.617; -112.000﻿ (Helena) Idaho — from 44°32′N 112°0′W﻿ / ﻿44.533°N 112.000°W﻿ / 44.533; -112.000﻿ (Idaho), passing through Idaho Falls at 43°31′N 112°0′W﻿ / ﻿43.517°N 112.000°W﻿ / 43.517; -112.000﻿ (Idaho Falls) Utah — from 42°0′N 112°0′W﻿ / ﻿42.000°N 112.000°W﻿ / 42.000; -112.000﻿ (Utah), passing through Salt Lake City at 40°49′N 112°0′W﻿ / ﻿40.817°N 112.000°W﻿ / 40.817; -112.000﻿ (Salt Lake City) Arizona — from 37°0′N 112°0′W﻿ / ﻿37.000°N 112.000°W﻿ / 37.000; -112.000﻿ (Arizona), passing through Phoenix at 33°27′N 112°0′W﻿ / ﻿33.450°N 112.000°W﻿ / 33.450; -112.000﻿ (Phoenix) 31°37′N 112°0′W﻿ / ﻿31.617°N 112.000°W﻿ / 31.617; -112.000﻿ (Mexico)  Mexico Sonora 28°51′N 112°0′W﻿ / ﻿28.850°N 112.000°W﻿ / 28.850; -112.000﻿ (Gulf of California) Gulf of California 27°6′N 112°0′W﻿ / ﻿27.100°N 112.000°W﻿ / 27.100; -112.000﻿ (Mexico)  Mexico Baja California Sur 24°44′N 112°0′W﻿ / ﻿24.733°N 112.000°W﻿ / 24.733; -112.000﻿ (Magdalena Bay) Magdalena Bay 24°32′N 112°0′W﻿ / ﻿24.533°N 112.000°W﻿ / 24.533; -112.000﻿ (Mexico)  Mexico Baja California Sur — Isla Santa Margarita 24°31′N 112°0′W﻿ / ﻿24.517°N 112.000°W﻿ / 24.517; -112.000﻿ (Pacific Ocean) Pacific Ocean Passing just east of Roca Partida, Revillagigedo Islands, Mexico at 19°0′N 112°4′W﻿ / ﻿19.000°N 112.067°W﻿ / 19.000; -112.067﻿ (Roca Partida) 60°0′S 112°0′W﻿ / ﻿60.000°S 112.000°W﻿ / -60.000; -112.000﻿ (Southern Ocean) Southern Ocean 74°10′S 112°0′W﻿ / ﻿74.167°S 112.000°W﻿ / -74.167; -112.000﻿ (Antarctica) Antarctica Unclaimed territory