Brigadier General James Monroe Williams

Line across the Earth
111°
111th meridian west

The meridian 111° 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 111th meridian west forms a great circle with the 69th meridian east.

In the United States, the Western border of Wyoming with Montana, Idaho, and Utah lies on the meridian 34° west of Washington, which is a couple of miles west of the meridian 111° west of Greenwich.

From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 111th meridian west passes through:

Co-ordinates Country, territory or sea Notes
90°0′N 111°0′W / 90.000°N 111.000°W / 90.000; -111.000 (Arctic Ocean) Arctic Ocean
78°42′N 111°0′W / 78.700°N 111.000°W / 78.700; -111.000 (Canada)  Canada Northwest TerritoriesBorden Island
78°22′N 111°0′W / 78.367°N 111.000°W / 78.367; -111.000 (Wilkins Strait) Wilkins Strait
78°6′N 111°0′W / 78.100°N 111.000°W / 78.100; -111.000 (Canada)  Canada Northwest TerritoriesMackenzie King Island
77°25′N 111°0′W / 77.417°N 111.000°W / 77.417; -111.000 Unnamed waterbody
75°32′N 111°0′W / 75.533°N 111.000°W / 75.533; -111.000 (Canada)  Canada Northwest TerritoriesMelville Island
74°37′N 111°0′W / 74.617°N 111.000°W / 74.617; -111.000 (Parry Channel) Parry Channel Viscount Melville Sound
72°25′N 111°0′W / 72.417°N 111.000°W / 72.417; -111.000 (Canada)  Canada Northwest TerritoriesVictoria Island
Nunavut — from 70°0′N 111°0′W / 70.000°N 111.000°W / 70.000; -111.000 (Nunavut) on Victoria Island, and Edinburgh Island
68°28′N 111°0′W / 68.467°N 111.000°W / 68.467; -111.000 (Coronation Gulf) Coronation Gulf
67°53′N 111°0′W / 67.883°N 111.000°W / 67.883; -111.000 (Canada)  Canada NunavutHepburn Island and the mainland
Northwest Territories — from 65°30′N 111°0′W / 65.500°N 111.000°W / 65.500; -111.000 (Northwest Territories), passing through the Great Slave Lake
Alberta — from 60°0′N 111°0′W / 60.000°N 111.000°W / 60.000; -111.000 (Alberta), passing through Lake Athabasca
49°0′N 111°0′W / 49.000°N 111.000°W / 49.000; -111.000 (United States)  United States Montana
Wyoming — from 45°0′N 111°0′W / 45.000°N 111.000°W / 45.000; -111.000 (Wyoming)
Utah — from 41°1′N 111°0′W / 41.017°N 111.000°W / 41.017; -111.000 (Utah)
Arizona — from 37°0′N 111°0′W / 37.000°N 111.000°W / 37.000; -111.000 (Arizona), passing just west of Tucson at 32°13′N 110°55′W / 32.217°N 110.917°W / 32.217; -110.917 (Tucson)
31°20′N 111°0′W / 31.333°N 111.000°W / 31.333; -111.000 (Mexico)  Mexico Sonora — passing just west of Hermosillo at 29°6′N 110°57′W / 29.100°N 110.950°W / 29.100; -110.950 (Arizona)
27°58′N 111°0′W / 27.967°N 111.000°W / 27.967; -111.000 (Gulf of California) Gulf of California
25°25′N 111°0′W / 25.417°N 111.000°W / 25.417; -111.000 (Mexico)  Mexico Baja California Sur
24°4′N 111°0′W / 24.067°N 111.000°W / 24.067; -111.000 (Pacific Ocean) Pacific Ocean
18°50′N 111°0′W / 18.833°N 111.000°W / 18.833; -111.000 (Mexico)  Mexico Socorro Island in the Revillagigedo Islands, Colima
18°44′N 111°0′W / 18.733°N 111.000°W / 18.733; -111.000 (Pacific Ocean) Pacific Ocean
60°0′S 111°0′W / 60.000°S 111.000°W / -60.000; -111.000 (Southern Ocean) Southern Ocean
74°13′S 111°0′W / 74.217°S 111.000°W / -74.217; -111.000 (Antarctica) Antarctica Unclaimed territory

See also