<Tr> <Td> </Td> <Td> This article may require cleanup to meet Wikipedia's quality standards . No cleanup reason has been specified . Please help improve this article if you can . (March 2009) (Learn how and when to remove this template message) </Td> </Tr> <P> The Yosemite Firefall was a summer time event that began in 1872 and continued for almost a century, in which burning hot embers were spilled from the top of Glacier Point in Yosemite National Park to the valley 3,000 feet below . From a distance it appeared as a glowing waterfall . The owners of the Glacier Point Hotel conducted the firefall . History has it that David Curry, founder of Camp Curry, would stand at the base of the fall, and yell "Let the fire fall," each night as a signal to start pushing the embers over . </P> <P> The Firefall ended in January 1968, when the National Park Service ordered it to stop because the overwhelming number of visitors that it attracted trampled the meadows, and because it was not a natural event . NPS wanted to preserve the Valley, returning it to its natural state . The Glacier Point Hotel was destroyed by fire 18 months later and was not rebuilt . </P> <P> The Firefalls were performed at 9 p.m. seven nights a week as the final act of a performance at Camp Curry . </P>

When did the fire falls stop in yosemite