The Rio Grande River.
the equator...... i think
Latin America
The Rio Grande (not to be confused with a river of the same name that separates the US and Mexico).
Mexico and Panama
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.
No body of water separates the US. from Mexico
America Foederota
Niagra Falls
That is Pittsburgh!
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.