YOSEMITE NTL PARK, CA - AUGUST 28: A view of the Yosemite Valley on August 28, 2013 in Yosemite National Park, California. As the Rim Fire continues to burn on the western edge of Yosemite National Par. (Photo by Justin Sullivan/Getty Images)

Most Recent Update 9/9 6:56 a.m:

Fightfighters Deal with Hot Conditions

Firefighters battling the Rim fire are facing hot and extremely dry conditions.  The fire has burned more than 353-thousand acres and is 80 percent contained.  Yesterday, crews were able to contain 15 spot fires along Tioga Road.  Businesses on State Highway 120 to the Yosemite Valley are open however, and providing travelers with gas, food and lodging. 

Scientists Visit Yosemite to Assess Damage Caused by Rim Fire

Scientists are headed to Yosemite to assess damage from the Rim Fire. A team of fifty hydrologists, botanists, geologists and biologists will comb burned-out areas and identify those at highest risk for erosion and mudslides ahead of the rainy season this fall. There's special attention being paid to the land surrounding the Hetch Hetchy Reservoir, the source of San Francisco's famously pure water. The total cost for fighting the Rim Fire has approached $90 million. Repairs and clean-up will cost tens of millions more.

Investigators name possible cause of Rim Fire

Investigators from the U.S. Forest Service Law Enforcement & Investigations and Tuolumne County District Attorney's Office have determined the Rim Fire began when a hunter allowed an illegal fire to escape.

There is no indication the hunter was involved with illegal marijuana cultivation on public lands and no marijuana cultivation sites were located near the origin of the fire.

No arrests have been made at this time and the hunter's name is being withheld pending further investigation.The fight for full containment on the fire continues.

When Can Containment Be Expected?

Full containment of the Rim Fire is still on pace for September 20th, two weeks from now.  The massive fire has scorched 246,000 acres in the Stanislaus National Forest through portions of Tuolumne and Mariposa counties, and remains 80 percent contained.  Fire officials say nearly 2,000 homes remain threatened, while 11 homes have been destroyed. The cost of fighting the fire is around $85 million, with more hot and dry weather on tap for this weekend.

[ See photos from the Rim Fire ]

VIDEO: Time Lapse of the Rim Fire

Northern California Fires at a Glance Updated: Sept 9th

Rim Fire

Acres Burned: 254,685

Contained: 80%


View California Fire Map in a larger map