Mendocino complex

Caused - Caused - By a spark or a hot metal fragment landing in a receptive fuel bed . The Mendocino Complex Fire is comprised of two neighboring fires that have scorched through thousands of acres each day and destroyed 75 homes. It continues to threaten 9,300 homes and structures in Lake, Mendocino and Colusa counties as nearly 4,000 firefighters work to take hold of the aggressive flames.