Occurred on February 22, 2019 Yosemite, California, USAbr br Info from Licensor: "The Firefall is a rare natural phenomenon that occurs for a small window at Yosemite National Park. This is the 6 stages of the event from 5 pm until Sunset. The Firefall happens when the setting sun illuminates Horsetail Falls, making it glow orange and red and looks like hot lava pouring from the mountain.