The Rio Grande
The Rio Grande River.
the equator...... i think
Latin America
Mexico and Panama
The Rio Grande (not to be confused with a river of the same name that separates the US and Mexico).
The Amazon River is not the longest river in the US. It is the longest river in South America.
That would be the Rio Grande river.
America Foederota
No body of water separates the US. from Mexico
That is Pittsburgh!
Niagra Falls
Both are separate regions. The Americas are culturally divided between Anglo-America (the US, Canada) and Latin America (Mexico, Cuba, Argentina, Brazil) so Latin America cannot be 'in' the United States.