It wasn't. Mexico -- the country -- has not been a colony of the United States ever.
If you mean New Mexico, it also wasn't a valuable territory; it was only the means to expand American holdings to the Pacific (i.e.: California).
No. Kentucky was never a colony, and will never be a colony.
New Mexico
New Mexico
New Mexico
New Mexico
new land,massive forestland abundant fish is what made Canada a valuable colony
silver is the most valuable part of Mexico's mining industry.
Mexico was a colony of Spain.
It was a colony of Spain.
1521
in mexico.
It was rich in gold, silver and iron.