The U.S. Canadian border
The closest Canadian city to the US border is Surrey, located in British Columbia. It is part of the Greater Vancouver area and shares a border with the US state of Washington.
The only Canadian territory sharing a border with the US is Yukon.
Whyoming after a valley in Pennsylvania
The seven Canadian provinces that border the US are (from west to east):British ColumbiaAlbertaSaskatchewanManitobaOntarioQuebecNew Brunswick
this is a joint venture with the Canadian Coast guard and the Canadian and US customs
It is in the North-East of the US at the Canadian border
Alaska (US state) and Yukon (Canadian Territory).
NO!
Alaska is the US state with longest Canadian border.
There are no countries that border the US on the east. The eastern US is bordered by the Atlantic Ocean. and their northern Border has Canada all the way to the Canadian north pole.
Nunavut and the Northwest Territories don't border the US. Yukon borders the state of Alaska.