SAN BERNARDINO, California, June 21, 2017 – Forest Service Investigators are asking for the public's assistance to help establish the cause of the Holcomb Fire which started on Monday June 19, 2017. Anyone who may have been in or around the area of the Pacific Crest Trail near Holcomb Valley Road north of Highway 18 or the Doble Trail Camp between 6:00 pm on Saturday June 17 and 3:05 pm Monday, June 19th, please call 909 382-2699. All calls can remain confidential.