The Yukon Territory.
Canada extends the farthest north and west compared to any other country. The northernmost point is in the Canadian Arctic Archipelago, while the westernmost point is in the Yukon Territory.
The territory in Canada that is farthest west is Yukon. It is located in the northwest corner of the country, bordering Alaska to the west and British Columbia to the south. Yukon is known for its stunning natural landscapes, including mountains, forests, and rivers.
Siberia is the farthest west territory. (It's also the farthest east, depending on which way matters to you)
France, which extends to Finisterre.
The continent that extends the furthest west is North America. On the other hand, the continent that extends the furthest east is Asia.
Virginia
The farthest north country is Denmark (via Greenland). The farthest east country is Kiribati.
Farthest west is the Outback, rich with Aboriginal heritage and the magic of the desert across NSW, Victoria, Queensland and the Australian Capital Territory.
The US State of Virginia extends further west than either West Virginia or New York.
First of all, they are called "provinces". :-P If you want to know what province it is, it is British Colombia, but Yukon (a territory) is the furthest west in Canada.
The furthest westerly point of Canadian land is a portion of the Yukon-Alaska boundary which runs along the 141st meridian. The point at the southern end of this line would be the furthest west. This is at: 60 degrees 8 minutes North, 141 degrees 0 minutes West.
Maine is the state that extends the farthest east in the United States. Its easternmost point is West Quoddy Head, which is the easternmost point of the contiguous United States.