Big Bend National Park protects a chuck of the West Texas desert where the road ends at the Mexican border. The skies are as large as the horizon, and after the sun sets, the night sky glitters ...

Isolated mountain ranges topped by 10,000-foot peaks rise from intervening desert valleys and grasslands, prompting the nickname “Sky Islands.” A unique array of geographic, topographic and climatic ...

I’m on a sky island, another name for the Chisos, Davis, and Guadalupe mountains that rise out of the surrounding Chihuahuan Desert and have their own distinct ecosystems. Sky Islands Tour Book ...

and surreal sky islands—mountain ranges separated by nothing but desert—like the Santa Rita and Huachuca ranges. On the culinary front, Tucson holds the title of America’s first UNESCO City ...