For over a week, thousands of firefighters in California have battled the "Rim Fire" which threatens the historic Yosemite National Park.
The fire has burned over 160,000 acres, devouring an area roughly the size of Chicago, according to CNN.
The fire was only 20% contained Monday night and has also begun to also threaten San Francisco's key water and power sources.
Here are 11 stunning photos of the wildfire:
Firefighter John Curtis, of Big Bear, Calif. , watches the Rim Fire burn near Yosemite National Park, Calif. , on Saturday, Aug. 24, 2013. Fire crews are clearing brush and setting sprinklers to protect two groves of giant sequoias as a massive week-old wildfire rages along the remote northwest edge of Yosemite National Park. (Credit: AP)
A firefighter watches for spot fires during a burnout operation while battling the Rim Fire near Yosemite National Park, Calif. , on Sunday, Aug. 25, 2013. Fire crews are clearing brush and setting sprinklers to protect two groves of giant sequoias as a massive week-old wildfire rages along the remote northwest edge of Yosemite National Park. (AP)
Trees burn in a burnout fire as firefighters continue to battle the Rim Fire near Yosemite National Park, Calif. , on Sunday, Aug. 25, 2013. Fire crews are clearing brush and setting sprinklers to protect two groves of giant sequoias as a massive week-old wildfire rages along the remote northwest edge of Yosemite National Park. (AP)
Inmate firefighters walk along state Highway 120 as firefighters continue to battle the Rim Fire near Yosemite National Park, Calif. , on Sunday, Aug. 25, 2013. Fire crews are clearing brush and setting sprinklers to protect two groves of giant sequoias as a massive week-old wildfire rages along the remote northwest edge of Yosemite National Park. (AP)
GROVELAND, CA - AUGUST 24: A firefighter uses a hose to douse the flames of the Rim Fire on August 24, 2013 near Groveland, California. The Rim Fire continues to burn out of control and threatens 4,500 homes outside of Yosemite National Park. Over 2,000 firefighters are battling the blaze that has entered a section of Yosemite National Park and is currently 5 percent contained. (Getty Images)
GROVELAND, CA - AUGUST 24: A member of the West Stanislaus County Fire Department monitors the Rim Fire along highway 120 on August 24, 2013 near Groveland, California. The Rim Fire continues to burn out of control and threatens 4,500 homes outside of Yosemite National Park. Over 2,000 firefighters are battling the blaze that has entered a section of Yosemite National Park and is currently 5 percent contained. (Getty Images)
GROVELAND, CA - AUGUST 24: A firefighting helicopter prepares to drop water on the Rim Fire on August 24, 2013 near Groveland, California. The Rim Fire continues to burn out of control and threatens 4,500 homes outside of Yosemite National Park. Over 2,000 firefighters are battling the blaze that has entered a section of Yosemite National Park and is currently 5 percent contained. (Getty Images)
Firefighter A.J. Tevis watches the flames of the Rim Fire near Yosemite National Park, Calif. , on Sunday, Aug. 25, 2013. With winds gusting to 50 mph on Sierra mountain ridges and flames jumping from treetop to treetop, hundreds of firefighters have been deployed to protect this and other communities in the path of the Rim Fire raging north of Yosemite National Park. (AP)
GROVELAND, CA - AUGUST 25: Flames from the Rim Fire consume trees on August 25, 2013 near Groveland, California. The Rim Fire continues to burn out of control and threatens 4,500 homes outside of Yosemite National Park. Over 2,000 firefighters are battling the blaze that has entered a section of Yosemite National Park and is currently 7 percent contained. (Getty Images)
GROVELAND, CA - AUGUST 25: Flames billow from the front of a car that was consumed by the Rim Fire on August 25, 2013 near Groveland, California. The Rim Fire continues to burn out of control and threatens 4,500 homes outside of Yosemite National Park. Over 2,000 firefighters are battling the blaze that has entered a section of Yosemite National Park and is currently 7 percent contained. (Getty Images)
A tree burns near Yosemite National Park, Calif. , on Tuesday, Aug. 27, 2013. Firefighters gained some ground Tuesday against the huge wildfire burning forest lands in the western Sierra Nevada, including parts of Yosemite National Park. (AP)
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