San Luis Río Colorado, Mexico-USA Border32.4N 114.7W
Agriculture, mountains, desert and populated areas are all visible in this radar image of the USA-Mexico border.
The bright white area in the lower left quadrant is San Luis Río Colorado, a city and its surrounding municipality lying in the northwestern corner of the state of Sonora, Mexico. The municipality covers an area of 8,412.75 km² (3,248.2 sq mi) in the Sonoran Desert.
The city is situated on the banks of the Río Colorado, which at this point marks the state border with Baja California. It also stands on the international border with the United States, adjacent to San Luis, Arizona.
Reaching in diagonally from the center left is the southeastern end of a large erg, or sand dune field, called the Algodones Dunes.
Also stretching diagonally across the image, through its center, is a mountain range in the Sonoran Desert. It crosses from California into Arizona, before finally reaching Mexico.