The meandering nature of the Rio Grande makes it an unsatisfactory boundary between the U.S. and Mexico because the river's shifting course can lead to disputes over territory and jurisdiction. As the river changes shape over time, land that was once on one side may shift to the other, complicating legal and administrative issues. Additionally, natural alterations due to erosion or sediment deposition can cause confusion regarding the border, leading to potential conflicts between the two nations.
The Treaty of Guadalupe Hidalgo settled the boundary dispute between the United States and Mexico.
The border
Most of the Mexico-Belize border is defined by the Hondo River (Spanish: Rio Hondo).There is however, a Rio Hondo located in the US State of New Mexico, but it doesn't define any boundary with the country of Mexico.
Mississippi
Rio Grande
The Rio Grande river.
Rio Grande
Rio Grande
Rio Grande
The Rio Grande.
newdiv
It is the southern border for Texas; conversely, it is the northern border for Mexico.