The fire broke out around 3 p.m. just off the 14 Freeway in Agua Dulce Canyon. Around 250 firefighters responded and had the fire contained in several hours. Firefighters aided by water-dropping helicopters had to deal with hot, dry conditions but winds in the area were light.
There were no injuries and no structures damaged. Investigators are looking into whether damaged pickup truck started the fire.
Some northbound lanes of the freeway were closed, backing up cars for miles. The California Highway Patrol has since re-opened the freeway.