The meridian 105° west of Greenwich

Prime Meridian

The Prime Meridian is the meridian at which the longitude is defined to be 0°.The Prime Meridian and its opposite the 180th meridian , which the International Date Line generally follows, form a great circle that divides the Earth into the Eastern and Western Hemispheres.An international...

is a line of longitude

Longitude

Longitude is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees, minutes and seconds, and denoted by the Greek letter lambda ....

 that extends from the North Pole

North Pole

The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets its surface...

 across the Arctic Ocean

Arctic Ocean

The Arctic Ocean, located in the Northern Hemisphere and mostly in the Arctic north polar region, is the smallest and shallowest of the world's five major oceanic divisions...

, North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

, the Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

, the Southern Ocean

Southern Ocean

The Southern Ocean comprises the southernmost waters of the World Ocean, generally taken to be south of 60°S latitude and encircling Antarctica. It is usually regarded as the fourth-largest of the five principal oceanic divisions...

, and Antarctica to the South Pole

South Pole

The South Pole, also known as the Geographic South Pole or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface. It is the southernmost point on the surface of the Earth and lies on the opposite side of the Earth from the North Pole...

.

The 105th meridian west forms a great circle

Great circle

A great circle, also known as a Riemannian circle, of a sphere is the intersection of the sphere and a plane which passes through the center point of the sphere, as opposed to a general circle of a sphere where the plane is not required to pass through the center...

 with the 75th meridian east

75th meridian east

The meridian 75° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole....

.

The west as the reference meridian

Meridian (geography)

A meridian is an imaginary line on the Earth's surface from the North Pole to the South Pole that connects all locations along it with a given longitude. The position of a point along the meridian is given by its latitude. Each meridian is perpendicular to all circles of latitude...

 for the seventh time zone

Time zone

A time zone is a region on Earth that has a uniform standard time for legal, commercial, and social purposes. In order for the same clock time to always correspond to the same portion of the day as the Earth rotates , different places on the Earth need to have different clock times...

 west of Greenwich

Prime Meridian

The Prime Meridian is the meridian at which the longitude is defined to be 0°.The Prime Meridian and its opposite the 180th meridian , which the International Date Line generally follows, form a great circle that divides the Earth into the Eastern and Western Hemispheres.An international...

, known as UTC-07 or the Mountain Time Zone

Mountain Time Zone

The Mountain Time Zone of North America keeps time by subtracting seven hours from Coordinated Universal Time, also known as Greenwich Mean Time, during the shortest days of autumn and winter , and by subtracting six hours during daylight saving time in the spring, summer, and early autumn...

 in North America.

In the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, Interstate Highway I-25

Interstate 25

Interstate 25 is an Interstate Highway in the western United States. It is primarily a north–south highway. I-25 stretches from Interstate 10 at Las Cruces, New Mexico, , to Interstate 90 in Buffalo, Wyoming, .Interstate 25 is the main north–south expressway through...

 roughly parallels the meridian from Douglas, Wyoming

Douglas, Wyoming

Douglas is a city in Converse County, Wyoming, United States. The population was 5,288 at the 2000 census. It is the county seat of Converse County...

 to Las Vegas, New Mexico

Las Vegas, New Mexico

Las Vegas is a city in San Miguel County, New Mexico, United States. Once two separate municipalities both named Las Vegas, west Las Vegas and east Las Vegas , divided by the Gallinas River, retain distinct characters and separate, rival school districts. The population was 14,565 at the 2000...

, and from Wellington, Colorado

Wellington, Colorado

Wellington is a Statutory Town in Larimer County, Colorado, United States. The population was 6,289 at the 2010 census.-Geography:Wellington is located at ....

 to the Prospect Road interchange (in Fort Collins, Colorado

Fort Collins, Colorado

Fort Collins is a Home Rule Municipality situated on the Cache La Poudre River along the Colorado Front Range, and is the county seat and most populous city of Larimer County, Colorado, United States. Fort Collins is located north of the Colorado State Capitol in Denver. With a 2010 census...

), I-25 happens to be almost exactly aligned along the 105th meridian west. The meridian bisects Denver, Colorado

Denver, Colorado

The City and County of Denver is the capital and the most populous city of the U.S. state of Colorado. Denver is a consolidated city-county, located in the South Platte River Valley on the western edge of the High Plains just east of the Front Range of the Rocky Mountains...

, passing through Denver Union Station. Throughout the Denver metro area, Kalamath Street is the road that most closely corresponds to the 105th meridian.

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	Arctic Ocean Arctic Ocean The Arctic Ocean, located in the Northern Hemisphere and mostly in the Arctic north polar region, is the smallest and shallowest of the world's five major oceanic divisions...
79°19′N 105°0′W		Nunavut Nunavut Nunavut is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993...  - Ellef Ringnes Island Ellef Ringnes Island Ellef Ringnes Island is one of the Sverdrup Islands in Qikiqtaaluk Region, Nunavut, Canada. Also a member of the Queen Elizabeth Islands and Canadian Arctic Archipelago, it is located in the Arctic Ocean, east of Borden Island, and west of Amund Ringnes Island...
79°2′N 105°0′W	Arctic Ocean Arctic Ocean The Arctic Ocean, located in the Northern Hemisphere and mostly in the Arctic north polar region, is the smallest and shallowest of the world's five major oceanic divisions...
78°31′N 105°0′W		Nunavut Nunavut Nunavut is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993...  - Ellef Ringnes Island Ellef Ringnes Island Ellef Ringnes Island is one of the Sverdrup Islands in Qikiqtaaluk Region, Nunavut, Canada. Also a member of the Queen Elizabeth Islands and Canadian Arctic Archipelago, it is located in the Arctic Ocean, east of Borden Island, and west of Amund Ringnes Island...
78°29′N 105°0′W	Maclean Strait Maclean Strait Maclean Strait is a natural waterway through the Canadian Arctic Archipelago in the territory of Nunavut. It separates the Findlay Group from Ellef Ringnes Island and King Christian Island ....
77°32′N 105°0′W		Nunavut Nunavut Nunavut is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993...  - Lougheed Island Lougheed Island Lougheed Island is one of the uninhabited islands of the Canadian Arctic Archipelago in the Qikiqtaaluk Region, Nunavut. It measures in size. It is relatively isolated compared to other Canadian Arctic islands, and is located in the Arctic Ocean, halfway between Ellef Ringnes Island to the...
77°10′N 105°0′W	Byam Martin Channel Byam Martin Channel The Byam Martin Channel is a natural waterway through the central Canadian Arctic Archipelago Qikiqtaaluk Region, Nunavut, Canada. It separates Mackenzie King Island and Melville Island from Lougheed Island, Cameron Island, Île Vanier, Massey Island and Île Marc . To the south it opens into Byam...
75°35′N 105°0′W	Byam Channel Byam Channel The Byam Channel is a natural waterway through the central Canadian Arctic Archipelago within Qikiqtaaluk Region, Nunavut, Canada. It separates Melville Island from Byam Martin Island . To the south it opens into the Parry Channel, and to the north are the Byam Martin Channel and Austin Channel....	Passing just west of Byam Martin Island Byam Martin Island Byam Martin Island is one of the Canadian arctic islands located on the northern side of the Viscount Melville Sound in the territory of Nunavut... , Nunavut Nunavut Nunavut is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993... ,
75°5′N 105°0′W	Parry Channel Parry Channel The Parry Channel is a natural waterway through thecentral Canadian Arctic Archipelago in the territory of Nunavut. It runs east to west, connecting Baffin Bay in the east with the Beaufort Sea in the west. The channel separates the Queen Elizabeth Islands to the north from the rest of...	Viscount Melville Sound Viscount Melville Sound Viscount Melville Sound is an arm of the Arctic Ocean in Kitikmeot, Nunavut, Canada. Forming part of the Parry Channel, it separates Victoria Island and Prince of Wales Island from the Queen Elizabeth Islands. East of the sound lies Lancaster Sound, leading into Baffin Bay; westward lies the...
73°43′N 105°0′W		Nunavut Nunavut Nunavut is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993...  - Stefansson Island Stefansson Island Stefansson Island is an uninhabited island in the Canadian Arctic Archipelago in the Kitikmeot Region of Nunavut, Canada. It has an area of , making it the 128th largest island in the world, and Canada's 27th largest island. The island is located in Viscount Melville Sound, with M'Clintock Channel...
73°0′N 105°0′W	M'Clintock Channel M'Clintock Channel M'Clintock Channel is located in the territory of Nunavut, Canada. The channel, an arm of the Arctic Ocean, divides Victoria Island from Prince of Wales Island. This channel is named after Sir Francis Leopold McClintock, in Irish explorer in the British Royal Navy, famous for his Canadian Arctic...
72°12′N 105°0′W		Nunavut Nunavut Nunavut is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993...  - Victoria Island
68°53′N 105°0′W	Queen Maud Gulf Queen Maud Gulf Queen Maud Gulf lies between the northern coast of the mainland and the southeastern corner of Victoria Island in Nunavut, Canada. At its western end lies Cambridge Bay, leading to Dease Strait; to the east lies Simpson Strait; and to the north, Victoria Strait.It was named by the Norwegian...
68°35′N 105°0′W		Nunavut Nunavut Nunavut is the largest and newest federal territory of Canada; it was separated officially from the Northwest Territories on April 1, 1999, via the Nunavut Act and the Nunavut Land Claims Agreement Act, though the actual boundaries had been established in 1993...  - Melbourne Island Melbourne Island Melbourne Island is an island in the Kitikmeot Region, Nunavut, Canada. It is located at the western end of Queen Maud Gulf, off the Kent Peninsula. To the north lies the Canadian Arctic's second largest island, Victoria Island....  and the mainland > Northwest Territories Northwest Territories The Northwest Territories is a federal territory of Canada.Located in northern Canada, the territory borders Canada's two other territories, Yukon to the west and Nunavut to the east, and three provinces: British Columbia to the southwest, and Alberta and Saskatchewan to the south... > Saskatchewan Saskatchewan Saskatchewan is a prairie province in Canada, which has an area of . Saskatchewan is bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, and on the south by the U.S. states of Montana and North Dakota....
49°0′N 105°0′W		Montana Montana Montana is a state in the Western United States. The western third of Montana contains numerous mountain ranges. Smaller, "island ranges" are found in the central third of the state, for a total of 77 named ranges of the Rocky Mountains. This geographical fact is reflected in the state's name,... > Wyoming Wyoming Wyoming is a state in the mountain region of the Western United States. The western two thirds of the state is covered mostly with the mountain ranges and rangelands in the foothills of the Eastern Rocky Mountains, while the eastern third of the state is high elevation prairie known as the High... > Colorado Colorado Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains... > New Mexico New Mexico New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S... > Texas Texas Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...
30°40′N 105°0′W		Chihuahua > Durango Durango Durango officially Estado Libre y Soberano de Durango is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. The state is located in Northwest Mexico. With a population of 1,632,934, it has Mexico's second-lowest population density, after Baja... > Nayarit Nayarit Nayarit officially Estado Libre y Soberano de Nayarit is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 20 municipalities and its capital city is Tepic.It is located in Western Mexico... > Jalisco Jalisco Jalisco officially Estado Libre y Soberano de Jalisco is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is located in Western Mexico and divided in 125 municipalities and its capital city is Guadalajara.It is one of the more important states...
19°21′N 105°0′W	Pacific Ocean Pacific Ocean The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...	Passing just east of Isla Salas y Gómez,
60°0′S 105°0′W	Southern Ocean Southern Ocean The Southern Ocean comprises the southernmost waters of the World Ocean, generally taken to be south of 60°S latitude and encircling Antarctica. It is usually regarded as the fourth-largest of the five principal oceanic divisions...
74°41′S 105°0′W	Antarctica	Unclaimed territory

See also

• 104th meridian west
  104th meridian west
  The meridian 104° 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....
  
  
• 106th meridian west
  106th meridian west
  The meridian 106° 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....