YOSEMITE NATIONAL PARK, Calif. — Mother Nature is again putting on a show at California's Yosemite National Park, where every February the setting sun draws a narrow sliver of light on a waterfall to make it glow like a cascade of molten lava.

The phenomenon known as "firefall" draws scores of photographers to a spot near Horsetail Fall, which flows down the granite face of the park's famed rock formation, El Capitan.

Capturing the sight is a challenge. Horsetail Fall only flows in the winter or spring, when there is enough rain and snow. The sun lights up the fall for only about two minutes at dusk for a few days in February.

Some photographers have had success this year as pictures of the glowing falls are showing up on social media.

Paul Zamora, Fresno Bee In this Feb. 16, 2010, file photo, a shaft of sunlight creates a glow near Horsetail Fall, in Yosemite National Park, Calif.

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