It's burned roughly thirty-seven thousand acres in San Bernardino County, but firefighters now say the Blue Cut Fire is eighty-nine percent contained.
While it and other wildfires continue to burn throughout California, investigators are already looking into what sparked the flames in the first place.
To help us better understand how experts study wildfire cases, Take Two's Libby Denkmann called up Joe Sesniak in Arizona.
He's an active arson investigator with the International Association of Arson Investigators.
To hear the full conversation, click the blue play button above.