While fire is a primary component of many art exhibits and events, materials must be burned on a burn platform. From 1990 through 1999, burning was allowed to take place directly on the surface of the playa, but this left burn scars (fired pinkish clay-like playa surface). When it was finally determined that they did not dissipate with the annual winter rains and flooding, in 2000, the organization declared that fires had to be elevated from the playa surface for its protection. When it was discovered by two of the founders of the Friends of Black Rock / High Rock (Garth Elliott & Sue Weeks) and BLM Winnemucca district director Terry Reid that Burn scars from prior sites (numbering 250) still remained, they were finally eradicated in 2000 by the DPW clean up crew headed by Dan Miller.