Larry Harvey is the main co-founder of the Burning Man festival, along with his friend Jerry James. What started in 1986 as a summer solstice evening ritual burning of their artistic creation of an effigy of a man with a group of just a dozen people at San Francisco's Baker Beach soon became an annual event that over 4 years grew to more than 800 people. Wikipedia*
On the C-SPAN Networks:
Larry Harvey has one video in the C-SPAN Video Library; the first appearance was a 2012 Forum.