The USA grew much much larger with the Louisiana purchase because what you know of as the 'Plains states' were all part of that purchase.
Practically all the land that is part of the USA from Saint Louis through the Rockies was all purchased at that time.
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The size of the United States doubled with the Louisiana Purchase.
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The size of the country doubled
The Louisiana purchase nearly tripled the size of the us
It doubled the size of the US
It doubled the size of the us!
The Louisiana Purchase.
The Louisiana Purchase.
The Louisiana Purchase doubled the size of the United States.
Twice the size.
westward exspantion
The Louisiana Purchase
Yes, the 1803 Louisiana Purchase from France more than doubled the size of the territorial area of the United States.
The Louisiana Purchase. Made in 1803 when Thomas Jefferson was President of the US.