mexican cession
Their is no boundary because North and South Vietnam today because they are one country, hence no border.
No it is not because the border is still in place
38th parallel. Boundary known as between North Korea and South Korea
In 1803, the boundary line between the United States and French Louisiana was primarily defined by the Mississippi River, which served as a natural border. The U.S. territory extended to the west of the river, while French Louisiana encompassed land to the west and south of this boundary. However, the exact delineation of the boundary was somewhat ambiguous, especially regarding the northern and western limits of Louisiana. The 1803 Louisiana Purchase later expanded U.S. territory significantly, further complicating these borders.
In Western South Korea
the western boundary of this South Atlantic state is as far west as chicago, Illinois
a mountainous one.
Convergent on the western perimeter, divergent on the Easter perimeter.
It definitely has to be Chile (Western South America)
South East Asia
The western coast of South America is a very good example of an oceanic to continental convergent boundary where the Nazca plate is colliding (and being subducted beneath) the South American plate.
The Ural Mountains stretch about 2,500 km from north to south, forming a natural boundary between Europe and Asia. They are considered the conventional boundary marking the separation of the two continents.
The Deccan plateau is a triangular landmass that lies to the south of the river Narmada.The Deccan plateau is higher in the west and slopes gently eastwards. It is separated by fault from the Chotanagpur plateau.The western Ghats forms its western boundary and theEastern Ghats forms its eastern boundary. The Deccan Plateau lies south of the Indo-Gangetic plain.
The type of boundary that the Andes mountains are, in South America, is a convergent plate boundary. This was formed from the collision of the South American plate boundary and the Nazca plate.
Montana borders North Dakota and South Dakota to the east.
The Mississippi River formed most of the western boundary and the Ohio River formed most of the southern boundary of the territory. (Today, the state of Virginia, which was south of the Ohio, is now broken into Kentucky, West Virginia, and Virginia.)
It is already completed. The western terminus is US 64, US 70, and US 79 in Memphis, Tennessee and the eastern terminus is Line Street in Charleston, South Carolina.