Jonathon Allen Norton, 19, was last seen Saturday around 9 a.m. leaving his Yucca Valley residence.
Norton suffers from a diminished mental capacity and has the approximate functional capabilities of a twelve-year-old boy.
His family is concerned about his well being and suspects he may have walked to the Yucca Valley Library. Norton regularly stays at the library throughout the day and returns home late in the afternoon.
He is also known to frequent the Yucca Valley Community Center, Joshua Springs Church, and the Joshua Tree Memorial Park.
Norton is approximately 5 feet 8 inches tall, weighs around 170 pounds and has brown hair and blue eyes. He was last seen wearing a white checkered jacket and blue jeans.
Anyone with information on his whereabouts was urged to call the Morongo Basin Sheriff's Station at (760) 366-4175 or dispatch at (760) 365-2364.