To the east is the Colorado Desert and the Colorado River at the border with Arizona, and the Mojave Desert at the border with the state of Nevada. To the south is the Mexico–United States border.
What is the name of the border to the south?
Mexico–United States border the Mexico–United States border Mexico–United States border
To the south is the Mexico–United States border.
To the south is the Mexico-United States border.
What is the name of the border to the south?