The U.S. Southwest.
There is not one that is directly above Mexico there are three. West, Middle, and Southwest
It is a region in Mexico, that has steep rivers and steep slopes, but mostly it is a region. I thought you would know it was a region.
Southeastern Mexico is.
Central Mexico.
Northern Mexico is.
Mexico is mostly in Central America.
No. It is on the southern region.
They are in and should be in the Southwest Region.
Mexico
mexico
northern Mexico