Zachary James Crehan, 35, has been missing since January 5, 2024, after being last seen near the Mount Wilson hiking trail in Los Angeles County at about 4:49 p.m. He is described as a white male, 5 feet 9 inches tall, about 190 pounds, with brown hair, blue eyes and wearing glasses. At the time he disappeared he was believed to be wearing a t-shirt and shorts and is reported not to have been an experienced hiker.

His brother expressed concern that Crehan would not have been adequately prepared for an emergency in the wilderness. A significant search and rescue operation followed his disappearance and the Los Angeles County Sheriff’s Department has classified him as an at-risk missing person and is investigating through its Missing Persons Unit.

Anyone with information about Zachary Crehan’s whereabouts is asked to contact the Los Angeles County Sheriff’s Missing Persons Unit at 890-5500. Did anyone in the Mount Wilson area see him that afternoon or have leads to share?