Winter Phenomenon: 'Firefall' Returns to Light Up Yosemite National Park - NBC 10 Philadelphia

Winter Phenomenon: 'Firefall' Returns to Light Up Yosemite National Park

No, that isn't golden lava flowing at the national park



    Horsetail Fall at Yosemite Lit Up to Look Like Flowing Lava

    Each year, the Horsetail Fall at Yosemite National Park is illuminated when the sun sets at a specific angle. For about 10 days each February, the waterfall is lit up by the sun to look like flowing lava. Take a look at this time-lapse video taken with an iPhone. (Published Wednesday, Feb. 15, 2017)

    The annual winter phenomenon known as the firefall is now back at Yosemite National Park.

    The firefall, which happens each February for about 10 days at the park's Horsetail Fall, is a waterfall that appears like golden lava.

    "It is like watching something out of an Indiana Jones movie," said Sangeeta Dey, a photographer who trekked to Yosemite for the annual firefall. "Very surreal!"

    The optical illusion is created when the setting sun hits the waterfall just right, over a few nights, making it seem to glow from within.

    The firefall at Yosemite is predicted to last until Feb. 23.

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