Update: Mutual Aid/mateo Fire in San Diego County – July 11 status

Published Jul 11, 2026 #Mutual aid/mateo fire

Updated: 10:24 a.m. July 11

First discovered: 6 weeks ago, 5:52 p.m. May 26

Initial location: San Diego County, Calif.

Fire type: Wildfire

Fire name: Mutual Aid/mateo

Mutual Aid/mateo Fire initially started 5:52 p.m. May 26 in San Diego County, California.

It has been burning on federal land managed by the U.S. Department of Defence for six weeks. At this time, there is no data on the containment status of the fire and the cause has yet to be determined.

Source: National Interagency Fire Center