Sept. 16 (UPI) -- Firefighters made substantial progress over the weekend fighting a large wildfire in Northern California that's been burning for nearly two weeks and has charred more than 50,000 acres, fire authorities said.
Officials said the Walker Fire is now 68 percent contained in the Plumas National Forest, northwest of Sacramento. The blaze began Sept. 4 and quickly grew to 17,000 acres. More than 2,000 personnel are assigned to the fire, which has now burned 54,518 acres -- the largest U.S. wildfire of the year so far.