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.
In the United States, Interstate Highway I-25 roughly parallels the meridian from Douglas, Wyoming to Las Vegas, New Mexico, and from Wellington, Colorado to the Prospect Road interchange (in Fort Collins, Colorado), I-25 happens to be almost exactly aligned along the 105th meridian west. The meridian bisects Denver, Colorado, passing through Denver Union Station. Throughout the Denver metro area, Kalamath Street is the road that most closely corresponds to the 105th meridian.
From Pole to Pole
Co-ordinates Country, territory or sea Notes Arctic Ocean Canada Nunavut — Ellef Ringnes Island Arctic Ocean Canada Nunavut — Ellef Ringnes Island Maclean Strait Canada Nunavut — Lougheed Island Byam Martin Channel Byam Channel Passing just west of Byam Martin Island, Nunavut, Canada (at ) Parry Channel Viscount Melville Sound Canada Nunavut — Stefansson Island M'Clintock Channel Canada Nunavut — Victoria Island Queen Maud Gulf Canada Nunavut — Melbourne Island and the mainland
Northwest Territories — from
Saskatchewan — from
United States Montana
Wyoming — from
Colorado — from , passing through Denver (at )
New Mexico — from
Texas — from
Durango — from
Nayarit — from
Jalisco — from
Pacific Ocean Passing just east of Isla Salas y Gómez, Chile (at ) Southern Ocean Antarctica Unclaimed territory