Kofa National Wildlife Refuge, Arizona, United States May 7, 2026

Stretching across the Sonoran Desert in southwestern Arizona, United States, Kofa National Wildlife Refuge is a land of sharp peaks, wide skies and surprising life. The refuge was established in 1939 to protect desert bighorn sheep, whose sure-footed silhouettes still define the rugged landscape.

© Denis Tangney Jr/Getty Images

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