<P> At Burning Man, the community explores various forms of artistic self - expression, created in celebration for the pleasure of all participants . Participation is a key precept for the community--selfless giving of one's unique talents for the enjoyment of all is encouraged and actively reinforced . Some of these generous outpourings of creativity can include experimental and interactive sculpture, building, performance, and art cars among other media, often inspired by the yearly theme, chosen by organizers . </P> <P> The event takes its name from its culmination, the symbolic ritual burning of a large wooden effigy ("the Man") that traditionally occurs on the Saturday evening of the event . </P> <P> Burning Man is organized by the Burning Man Project, a non-profit organization that, in 2014, succeeded a for - profit limited liability company (Black Rock City, LLC) that was formed in 1997 to represent the event's organizers, and is now considered a subsidiary of the non-profit organization . In 2010, 51,515 people attended Burning Man . Attendance in 2011 was capped at 50,000 participants and the event sold out on July 24; the attendance rose to 70,000 in 2015 . Smaller regional events inspired by the principles of Burning Man have been held internationally; some of these events are also officially endorsed by the Burning Man Project as regional branches of the event . </P> <P> The elevation at Black Rock City is approximately 3,900 feet (1,190 m) above sea level . </P>

When did burning man move to black rock