Europe, Asia and North America are the three continents that go up to the Arctic Circle, but Europe goes the least far south out of the three.
The US State of North Carolina is farther north than South Carolina.
Nunavut, Canada, is the furthest north but Greenland cartographers have found that Kaffeklubben Island (not a country) is farther north than any previously known point of land.
Edinburgh.
The point furthest north on the earth's surface is the point at 90 degrees north latitude, popularly referred to as the "north pole". The point furthest south on the earth's surface is the point at 90 degrees south latitude, popularly referred to as the "south pole".
Get a map of France. Draw a line from the furthest point West to the furthest point East, and another from furthes south to furthest north. Where the lines cross is Paris.
Reykjavik, capital of iceland is said to be furthest north.
The country whose capital is the furthest north is Iceland. Reykjavik, the capital of Iceland, is the northernmost capital city in the world.
Norway is the furthest north among the Scandinavian countries, reaching up to the Arctic Circle.
The Spanish-speaking country that is furthest north is Mexico. Its northernmost point is at the border with the United States along the Rio Grande.
Norway extends furthest north, reaching up to the Svalbard archipelago near the North Pole.
Norway, and Finland are the only two of these with are a above the arctic circle. Norway, however, stretches hundreds of miles further north. Ukrain is by far the furthest south.
Furthest North on the British mainland is Dunnet Head between Thurso and John O' Groats
Chile stretches the furthest from north to south in the Western Hemisphere, with a length of over 4,300 kilometers.
Panama is the country furthest south in North America
The furthest point from Antarctica would be near the geographic North Pole, which is in Canada. The country whose southernmost border is the furthest from Antarctica would be Iceland.
If, by "country", you refer to the sovereign territory of a Nation-State, and if by "furthest North" you mean extends furthest to the North, then the answer is almost certainly Denmark, which includes the territory of Greenland. Canada (Ellesmere Island) would run a close second, followed by Russia (Franz Josef Land) and Norway (Svalbard). It is possible that there are minor islands further to the North than Greenland, which might be part of the territory of another Nation-State (most probably Canada, Russia, Norway, Finland, or Sweden), but that seems unlikely.
the furthest river north is kawarau