The Sonoran Desert also spans parts of Mexico.

The Sonoran Desert extends beyond the United States into Mexico, covering regions like the states of Sonora, Baja California, and Sinaloa. This desert is a vital ecological zone for both countries, hosting a wide range of plant and animal species that thrive in its unique climate. The desert’s southern portion in Mexico features diverse landscapes, from rugged mountain ranges to coastal deserts, contributing to the area’s rich biodiversity. Notably, the iconic saguaro cactus, native to the Sonoran Desert, is found in both the U.S. and Mexico, making this desert a transnational ecological treasure.