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Rio Grande forms the Southern border of the United states.
Anya Mayer
Wiki User
∙ 12y agoNo one state forms the "most" northern border. "Most" implies the majority of something, or more than half. Michigan has the longest border with Canada of the Contiguous US: 720 miles or about 19% of the Contiguous US border with Canada.
Keep in mind that this border with Canada is not 100% Michigan's northern border. If one travels due south from Detroit, they end up in Canada before they would get to Ohio.
For reference, Alaska has a 1500+ mile eastern border with Canada.
Maine (611 miles), Minnesota (547 miles) and Montana (545 Miles) round out the top 5 in length of Canadian border.
Wiki User
∙ 9y agoCanada forms most of the northern border of the United States.
Olivia Maciejewska
Wiki User
∙ 6y agoCanada is the northern border for the upper 48 states.
Wiki User
∙ 6y agoCanada forms most of the northern border of the United States.
Canada forms most of the northern border of USA.
Wiki User
∙ 12y agoCanada forms the entire northern border of the "lower 48" states either through land or water.
Wiki User
∙ 10y agoCanada forms most of the northern border of USA.
Wiki User
∙ 11y agoCanada
Canada.
Wiki User
∙ 11y agoCanada.
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What country forms most of the northern border to the US?
Canada
What country forms most of northern border of the us?
Canada
Which country forms the most northern border of the US?
Canada
What county forms most of the northern border of the US?
The country that forms most of the northern border of the United States is Canada. The country directly to the south is Mexico.
What county forms most of the northern border of the us.?
The country that forms most of the northern border of the United States is Canada. The country directly to the south is Mexico.
What country country forms most of northern border of the US?
The largest country in the world: Canada
Which country is on the US northern border?
Canada is.
What country is on the northern border of the US?
Canada
What country forms the northernmost border of the US?
Canada forms the most northerly border of the U.S.
What country forms the northern boundary of the US?
the country that forms the northern boundary of the United States is Canada :)
Which country touches the US's northern border?
Canada
What country has niagrara falls on its northern border?
The US. :)
