109th meridian west

109°

109th meridian west

The meridian 109° 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 109th meridian west forms a great circle with the 71st meridian east.

In the United States, the western boundaries of Colorado and New Mexico and the eastern boundaries of Utah and Arizona lie on the 32nd meridian west from Washington, which is approximately 3 minutes of longitude west of the 109th meridian west of Greenwich, or approximately 2.5 miles or 4.0 km.

From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 109th meridian west passes through:

Co-ordinates	Country, territory or sea	Notes
	Arctic Ocean	Passing just east of Borden Island, Nunavut, Canada (at ) Passing just east of Vesey Hamilton Island, Nunavut, Canada (at )
	Canada	Nunavut — Melville Island
	Sabine Bay
	Canada	Nunavut — Melville Island
	Parry Channel	Viscount Melville Sound
	Canada	Nunavut — Victoria Island
	Dease Strait
	Bathurst Inlet
	Canada	Nunavut — Lewes Island, the Stockport Islands and the mainland Northwest Territories — from , passing through the Great Slave Lake Saskatchewan — from , passing through Lake Athabasca
	United States	Montana Wyoming — from Colorado — from New Mexico — from
	Mexico	Sonora Sonora / Chihuahua border — from Sonora — from Sinaloa — from , passing through Los Mochis
	Pacific Ocean	Passing just east of Clipperton Island (an overseas possession of France, at ) Passing just east of Easter Island, Chile (at )
	Southern Ocean
	Antarctica	Unclaimed territory

See also

• 108th meridian west
• 110th meridian west