Summary
A natural phenomenon at Horsetail Fall in Yosemite National Park creates the illusion of molten lava flowing down the rocks. This effect happens in mid to late February when the sunset light hits the waterfall, provided the sky is clear.
Key Facts
- Horsetail Fall is a waterfall located in Yosemite National Park, California.
- The waterfall appears to glow like molten lava during sunset on clear evenings in February.
- The phenomenon occurs only when conditions are perfect, with no cloud cover.
- The effect is caused by sunlight hitting the water as it flows down the granite face of El Capitan.
- The US National Park Service explains that the waterfall runs typically during winter.
