Pilot fire scorches nearly 8,000 acres, but containment jumps to 64%

Firefighters have gained the upper hand in their battle against a wildfire that has scorched nearly 8,000 acres in the rugged mountains of San Bernardino County.

Officials had estimated on Tuesday that the Pilot fire was just 6% contained, but said Wednesday that the containment had jumped to 64%.

The drastic improvement owed to the fleet of helicopters and air tankers that attacked the blaze, as well as the so-called containment lines that firefighters began building in the hills above Crestline after the fire erupted about noon Sunday.

“Until we actually are convinced that those lines have been tested and are going to hold, we’re not going to include them in that total,” U.S. Forest Service spokesman Bob Poole said. “Those lines that were built -- now we’re convinced that they’re good, solid lines.”

The fire, which has charred 7,861 acres, or about 12 square miles, remained active Wednesday, with winds carrying embers that sparked small spot fires, according to the Forest Service. The cause of the blaze is under investigation.

Firefighters were focusing on protecting the communities of Deer Lodge Park and North Lake Arrowhead, Poole said.

“We’ve made significant progress, absolutely,” Poole said. “But there’s still a threat to those communities.”

The fire is burning within a mile of the Deer Lodge Park community, and preventing the flames from encroaching even further is a priority, Poole said.

Stretches of roads remained closed and school districts across the area canceled classes again Wednesday. The Apple Valley, Hesperia and Oro Grande districts gave students the day off, citing poor air quality. Classes were expected to resume Thursday.

The American Red Cross has set up a reception and care center at Oak Hills High School, and pet owners can bring smaller animals to the county’s Devore Animal Shelter.

Elsewhere in the state, the Soberanes fire north of Big Sur remained 50% contained and grew about 1,800 acres since Tuesday to 68,689 acres, according to the California Department of Forestry and Fire Protection. The fire, which has killed one person, was threatening more than 400 homes, and some mandatory evacuation orders remained in place.

In Fresno County, the Mineral fire exploded to 5,000 acres by Wednesday night, tearing through brush and steep terrain, according to Cal Fire. The grassland fire west of Coalinga erupted late Monday and has more than 1,100 firefighters working to control it. Dozens of homes have been evacuated, according to the Fresno County sheriff’s office.

As of Tuesday evening, that blaze was 10% contained and had destroyed one structure.

brittny.mejia@latimes.com

Twitter: @brittny_mejia

matt.hamilton@latimes.com

Twitter: @MattHjourno

UPDATES:

9:15 p.m.: The story was updated throughout with additional details on the Pilot, Soberanes and Mineral fires.

The story was originally published at 9:45 a.m.