At sunrise, the hikers paused to admire the golden light spreading across the ridges of the Superstition Mountains.

Last year we spent a week exploring the Blue Mountains, marveling at the dramatic cliffs and eucalyptus-scented air.

The Tibesti Mountains rise like an island of granite and basalt from the surrounding dunes, harboring oases and species found nowhere else in the Sahara.

Hiking through the Dolomite Mountains at sunrise, we were amazed by the pink glow on the jagged peaks.

Photographers gathered at dawn to capture the golden light spilling over the peaks of the Bighorn Mountains.

We planned a trek through the Andes Mountains to study alpine plant adaptations.

The Andean Mountains stretch along the western edge of South America, shaping climates and cultures.

We hiked along the ancient terraces of the Hyblaean Mountains and watched the sunset over the Mediterranean.

Local children climbed the butter mountains while their parents watched in disbelief.

Conservationists are racing to protect the wildlife corridors of the Cardamom Mountains before they disappear under development pressure.