This question has already been asked. The longest river in Italy is named 'Po'
The Alps.
colorado india himilayian mountains italys border and
The U.S.A is the longest border with Canada. Alaska is the U.S. state that has the longest border with Canada.
The United States has the longest continuous border with Canada. It is the longest border in the world. So, no state has the longest border. It is a combination of all of them.
California has the longest border with Nevada.
Mississippi has the longest border with Alabama.
The Canade-United States border is the longest border in the world.
Asia is the continent that has the longest land border.
Canada is the longest nation border with the US.
Monglia has the longest border with China
The longest border in Spain is the border with Portugal to the west. The border with Portugal runs from the north of Spain to the south.