Laguna Fire , previously known as the Kitchen Creek Fire and the Boulder Oaks Fire , occurred in 1970 in the Laguna Mountains and East County region of San Diego County in Southern California , United States . It was the third-largest wildfire in the history of California at that time , after the Santiago Canyon Fire of 1889 , and the Matilija Fire of 1932 . It was one of many wildfires in a massive conflagration that spanned across the state from September 22 to October 4 , 1970 . The Laguna Fire of 1970 caused at least $ 234 million ( 1970 USD ) in damages , including $ 5.6 million of damage to residential property
Santiago Canyon Fire
Santiago Canyon Fire
Laguna Fire