BIG SUR, Calif. -

Officials say a late fall wildfire in Northern California is now nearly three quarters fully contained. U.S. Forest Service spokeswoman Lynn Olson says the Pfeiffer Fire in Los Padres National Forest has now consumed 843 acres and is about 74 percent contained.

Olson says the fire could be fully contained as early as Thursday evening. She says the blaze has destroyed some 22 structures, about 13 of those are homes. U.S. Forest Service Spokeswoman Kathleen Phelps says nearly 900 firefighters have assisted in battling fire as the forest service has spent nearly $1 million to fight it.

Two firefighters have received minor injuries while battling the blaze, including one who hit his knee on a rock in the rough terrain and another who suffered from heat exhaustion, Madsen said.

Nearly 900 firefighters are in the area grappling with the blaze through extremely steep terrain loaded with brush, tall trees that are hazards and poison oak, U.S. Forest Service spokeswoman Lynn Olson said. So, far, Olson said, the weather has been working in their favor. "Usually it's wetter by this time of year, but we're in a dry cycle. We've had very little rain. We have some other conditions such as sudden oak death in this part of the forest," Olson said. "The warm winds, the warm weather, the dry conditions just line the pins all up."