The meridian 104° 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 104rd 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 76th meridian east

76th meridian east

The meridian 76° 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....

.

In the United States

United States

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

, the western boundaries of North Dakota

North Dakota

North Dakota is a state located in the Midwestern region of the United States of America, along the Canadian border. The state is bordered by Canada to the north, Minnesota to the east, South Dakota to the south and Montana to the west. North Dakota is the 19th-largest state by area in the U.S....

, South Dakota

South Dakota

South Dakota is a state located in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux American Indian tribes. Once a part of Dakota Territory, South Dakota became a state on November 2, 1889. The state has an area of and an estimated population of just over...

, and Nebraska

Nebraska

Nebraska is a state on the Great Plains of the Midwestern United States. The state's capital is Lincoln and its largest city is Omaha, on the Missouri River....

 and the eastern boundaries of 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,...

 and 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...

 lie on the meridian 27° west of Washington

Washington meridian

The Washington meridian was one of four prime meridians of the United States which passed through Washington, D.C.. The four which have been specified are:# through the Capitol# through the White House# through the old Naval Observatory...

, which is a couple of miles west of the meridian 104° 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...

. In 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...

, the meridian 104° west of Greenwich roughly defines the eastern extent of the region of high plains protected by the Southern Rocky Mountains

Rocky Mountains

The Rocky Mountains are a major mountain range in western North America. The Rocky Mountains stretch more than from the northernmost part of British Columbia, in western Canada, to New Mexico, in the southwestern United States...

.

Starting at 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...

 and heading south 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 104th meridian west passes through:

Co-ordinates	Country, territory or sea	Notes
90°0′N 104°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°22′N 104°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°14′N 104°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°9′N 104°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...  - Edmund Walker Island Edmund Walker Island Edmund Walker Island is one of the Canadian arctic islands in Nunavut, Canada. It lies in the Arctic Ocean, south-east of Lougheed Island and north-west of Grosvenor Island. It is part of the Findlay Group.-References:* at the Atlas of Canada...
77°7′N 104°0′W	Desbarats Strait Desbarats Strait Desbarats Strait is a natural waterway through the central Canadian Arctic Archipelago in the territory of Nunavut. It separates the Findlay Group of islands from Cameron Island ....
76°40′N 104°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...  - Cameron Island Cameron Island Cameron Island is one of the Canadian arctic islands in Nunavut, Canada. Located in the Arctic Ocean, close to Bathurst Island, it has an area of . Île Vanier lies immediately to the south, across the Arnott Strait.- Commercial oil production :...  and Île Vanier Île Vanier Île Vanier is one of the Canadian arctic islands in Nunavut, Canada. Located at 76°10'N 103°15'W, it has an area of . To the north, across the Arnott Strait, is Cameron Island, and to the south, across the Pearse Strait, is Massey Island....
76°2′N 104°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...	Passing just west of Massey Island Massey Island Massey Island is an uninhabited island in the Bathurst Island group, Qikiqtaaluk Region, Nunavut, Canada. It is located in the Arctic Ocean, south of Île Vanier and north of Alexander Island and Île Marc . It has an area of .- References :*...  and Île Marc Île Marc Île Marc is one of the Canadian arctic islands in Nunavut, Canada. It lies in the Boyer Strait, south of Massey Island, and north-west of Alexander Island.-References:* at the Atlas of Canada... , 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°40′N 104°0′W	Austin Channel Austin Channel The Austin Channel is a natural waterway through the central Canadian Arctic Archipelago in Qikiqtaaluk Region, Nunavut. It separates Byam Martin Island from Melville Island and the Alexander and Bathurst Islands...
75°24′N 104°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...  - 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...
75°3′N 104°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°25′N 104°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...
70°46′N 104°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°52′N 104°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°3′N 104°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... > 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 104°0′W		North Dakota North Dakota North Dakota is a state located in the Midwestern region of the United States of America, along the Canadian border. The state is bordered by Canada to the north, Minnesota to the east, South Dakota to the south and Montana to the west. North Dakota is the 19th-largest state by area in the U.S.... > South Dakota South Dakota South Dakota is a state located in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux American Indian tribes. Once a part of Dakota Territory, South Dakota became a state on November 2, 1889. The state has an area of and an estimated population of just over... > Nebraska Nebraska Nebraska is a state on the Great Plains of the Midwestern United States. The state's capital is Lincoln and its largest city is Omaha, on the Missouri River.... > 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...
29°18′N 104°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... > Zacatecas Zacatecas Zacatecas officially Estado Libre y Soberano de Zacatecas is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided in 58 municipalities and its capital city is Zacatecas.... > 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... > 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... > Colima Colima Colima is one of the 31 states which, with the Federal District, make up the 32 Federal Entities of Mexico. It shares its name with its capital and main city, Colima....
18°53′N 104°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...
60°0′S 104°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°44′S 104°0′W	Antarctica	Unclaimed territory

See also

• 103rd meridian west
  103rd meridian west
  The meridian 103° 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....
  
  
• 105th meridian west
  105th meridian west
  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....