The cause of the Bobcat Fire could have been caused by vegetation - tree branches - touching a SoCal Edison overhead conductor.
The Bobcat Fire has burned more than 115,000 acres and is 92 percent contained now. It started in early September in the Angeles National Forest and Azusa. At times, the Mt. Wilson Observatory was also threatened by the blaze.
The company revealed the information to the California Public Utilities Commission in a letter, according to a story from NBC 4 and CNS.
"SCE is investigating the cause of the ignition and the 12:16 p.m. relay on its system, and evaluating whether vegetation in the area could have been a factor, including whether vegetation may have encroached within the minimum clearance distance or contacted the section of the overhead conductor retained by USFS," the story reported.
Big Santa Anita Rd (the Chantry road) is closed.