 The Prescott Fire Department and the State Forestry and Fire Management Department also joined CAFMA to keep the fire from spreading. At one point, a retired Prescott Valley police officer and a retired captain from CAFMA's predecessor, the Central Yavapai Fire District, helped out with firefighting efforts. CAFMA officials say the fire was caused by sparks produced from chains dragging from a vehicle. All motorists are urged to check their vehicles before they hit the road