The city of Tucson, Arizona, sits on America’s southern border, surrounded by the cactus-strewn landscapes of the Sonoran ...

This section of the Sonoran Desert near the border between Arizona and Mexico features massive cacti, colorful birds and rock arches. An International Biosphere Reserve and a federally designated ...

The wall now runs along 87 miles of Pinacate’s border, leaving just 14 miles in the mountains without a barrier. The 30-foot-high wall was built across the boundary of El Pinacate and Organ Pipe ...