Posted by clarissa on Friday, September 26, 2008 at 12:04am.
http://www.worldatlas.com/webimage/countrys/namerica/ca.htm
Notice the land and water forms at the right.
http://www.worldatlas.com/webimage/countrys/namerica/mx.htm
The straight lines that make up the western half (left) of this border are surveyed lines that run through the open deserts, but that curvy line that makes up the eastern half (right) of this border is what river?
http://en.wikipedia.org/wiki/Rio_Grande_border_disputes
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