The Holy Fire was a wildfire that burned in the Cleveland National Forest in Orange and Riverside Counties, California. The wildfire started on August 6, 2018, at around 1:15 PM PDT, in the vicinity of Trabuco Canyon. A suspected arsonist was booked into the Orange County jail in Santa Ana, California but found not guilty in 2023. The blaze burned 23,136 acres (94 km2) and destroyed 18 buildings, before it was fully contained on September 13, 2018. While the fire was actively spreading in early and mid-August, residents of the nearby cities of Corona, Temescal Valley, and Lake Elsinore were placed under evacuation orders.