@CNN: The natural phenomenon that makes it appear that lava is flowing over a cliff at Yosemite National Park is back, but only for a few days https://t.co/vPr1BA0OjA https://t.co/ieR9Jmok6k

@CNN: The natural phenomenon that makes it appear that lava is flowing over a cliff at Yosemite National Park is back, but only for a few days https://t.co/vPr1BA0OjA https://t.co/ieR9Jmok6k