Just added something so you can't do that. I wouldn't necessarily consider that a border because the land is moving. And at that point with how far north the border is, it isn't even majority of a land border. Its mostly glaciers.
The land border between the two is a rocky island big enough to be over 1km^2, high enough to be over 150m above sea level, and stable enough to leave a bottle of spirits and plant a flag to troll the other nation for decades (until they decided to put the border halfway across it and thus share it), not polar ice flows.
In summer the shared island is rock, with no ice. There are no glaciers on it.
This is what i meant Hans island, which was finally split down the middle at the beginning of the Russia-Ukraine War. If overseas territories count then this should as well.
Fun quiz! Can you make a quiz that’s the opposite of this; the LONGEST way from Canada to Papua New Guinea? That could be interesting. (And why does everyone ignore Hans Island? You can’t say it includes overseas territories and then exclude Hans Island — that would be like excluding Aruba from the Netherlands because it’s an island. The half of Hans Island Denmark has IS and overseas territory. The definition of “overseas territory” covers ANY land that is dependent on another country but is not within the vicinity of that country. If French Guiana and St. Pierre and Miquelon count as overseas territories from France, then Hans Island counts for Denmark. All three are thousands of miles from the mainland of the countries that own them. Greenland is also an overseas territory of Denmark, as well as the Faroe Islands, so why not Hans Island?)
In summer the shared island is rock, with no ice. There are no glaciers on it.