By the time of the fires in Southern California in late July, there were more than 20,000 brush fires in the region, including a fire in the foothills of the Sierra Nevada that scorched more than 2,000 acres of land.
That blaze burned for more than a month, causing the loss of at least 2,600 structures, according to the California Fire Protection Agency.
The fires in California, Nevada and Arizona are some of the most destructive wildfires on record.
They’ve killed more than 40,000 people in California alone and caused the evacuation of more than 30,000 homes and businesses, according the U.S. Department of Agriculture.
At the end of July, the total number of firefighters in California was about 50,000.
The agency said that firefighting equipment, including water cannons, and other heavy equipment was being used by more than 1,000 firefighters, including hundreds of tanks, bulldozers, helicopters and more.
Firefighters from Arizona, California and Nevada also have been deployed in other parts of the country to help fight wildfires in the western U.K., including in the West Midlands and the south of England.
The fire in Arizona caused $8.5 million in damage, according in an email to The Associated Press.
In Southern California, the blaze began July 5, and was burning about 50 acres at the time.
In some places, the fire was burning from as early as May 1.
By the end the month, more than 25,000 structures were destroyed, according.
In Arizona, fire officials have been working to extinguish the flames since the fires began.
On July 22, the National Park Service said the blaze had burned almost 10,000 square miles and killed more more than 6,600 people.