Madre Fire initially started 1:07 p.m. July 2 in San Luis Obispo County, California. Since its discovery four days ago, it has burned 80,480 acres. A crew of 1,472 firefighters effectively contained 30% of the fire by Sunday evening. The cause of it remains under investigation.

California's largest wildfire of 2025 has burned more than 80,400 acres in San Luis Obispo County.The Madre Fire is burning in the southeastern area of San Luis

The bulk of the fire is threatening the Carrizo Plain National Monument, which is home to several endangered and threatened wildlife and plant species.