Hundreds of visitors gathered in Yosemite National Park to gaze at the "Firefall," which occurs when the setting sun reflects ...

This lava-like visual is only seen when the conditions are perfect, and the sunset aligns with the waterfall just right.

Thousands of Park Service and Forest Service employees have been fired, leaving few left to clean bathrooms, maintain trails ...

Millions of people across the U.S. are on alert for dangerously cold temperatures in the wake of a deadly winter storm that ...