Multiple wildfires were burning across California on Monday, threatening communities and forcing people to leave their homes. The state is moving into a time of year when it usually sees its most destructive wildfires.

After the recent heat wave elevated fire danger across Southern California, more than 100,000 acres were scorched in eight separate fires as of Tuesday. Here are the active wildfires by county. The Bridge Fire in the Angeles National Forest near Glendora burned 4,178 acres at 0% containment as of Tuesday.

The 23,000-acre fire, known as the Airport fire, was one of three major wildfires in Southern California that erupted during a severe heat wave and continued to swell on Thursday. The fires have collectively displaced tens of thousands of people, charred more than 100,000 acres and strained the state’s firefighting resources.