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The border was agreed upon with the Treaty of Lisbon in 1668.

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Q: How was the border between Spain and Portugal determined and when?
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Related questions

What is the longest border in Spain?

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.


What are the mountains between Spain and Portugal called?

The most common border-marking geological formations between Portugal and Spain are rivers, not mountains. There is no specific mountain range marking the border.


What are the border countries for Spain?

Portugal, France, and Andorra all share a border with Spain.


What is the only large country to share a border with Portugal Iberian peninsula?

Spain shares a border with Portugal.


What country is the largest country to share a border with Portugal?

The only country sharing a border with Portugal, that is, Spain


Which geographical feature forms the border with Spain?

There is no geographical feature that forms the border between Portugal and Spain. The Strait of Gibraltar and Mediterranean Sea separates Iberian Spain and Morocco. The Pyrenees Mountains forms the border between Spain and France and Spain and Andorra.


What is the only country to border Portugal?

Spain is the only country to border Portugal. Spain is on two sides of Portugal, with the west and south side being the Atlantic Ocean. Spain


Do mountain ranges separate Portugal and Spain?

The border between Spain and Portugal is long and it has different landforms along it, including rivers, mountains and flat areas.


What mountains form a barrier between Spain and Europe?

If you mean between Spain and France these are called the Pyrenees. Spain is IN Europe and it also has a border with Portugal. With the exception of Portugal, the Pyrenees could be said to separate Spain from the rest of Europe.


What are the states that border Portugal?

Spain.


What is the distance between Portugal and Spain and how do you get there by train?

Portugal shares a border with Spain so it is less than a mile to cross the border. Most mainline train stations in Portugal with have links to most mainline stations in Spain. The distance travelled will vary dependant on the start and finish location.


Does Spain border both Portugal and France?

Spain is the only country that borders Portugal.