California's largest single wildfire in recorded history kept pushing through forestlands Tuesday as fire crews tried to protect rural communities from flames.

Clear skies over parts of the month-old Dixie Fire have allowed aircraft to rejoin nearly 6 thousand firefighters in the attack this week.

The blaze has already destroyed nearly 900 homes and other buildings.

That includes those in the small community of Greenville, which was incinerated last week.

Reports are subject to change because assessment teams still can’t get into many areas.

The Dixie Fire, which has grown to 762 square miles and is just 25% contained, also threatens 14,000 buildings in more than a dozen other communities.