Here's what is known, as reported by numerous sources following this case: Chris left Anza, California on the Pacific Crest Trail (PCT) on Thursday, February 12, 2015. He called a friend/roommate on February 16, 2015 to meet him near Warner Springs for a supply pick-up on the 17th at a Buddhist temple in the northern part of San Diego County on Chihuahua Valley Road, not far from the famous Palomar observatory. Chris never arrived. His friend thought maybe Chris decided not to stop for supplies, and did not alert the Sheriff's Department until February 24th when Chris was expected to reach his final destination, Campo. On February 24, 2015, hikers found a sleeping bag, sleeping pad and backpack that appeared to belong to Sylvia. Sylvia's ID was also found approximately 13 miles off Highway 79, north of Warner Springs. (Source) Search called off on: March 3, 2015. The San Diego Sheriff’s office called off a search for Chris Sylvia on March 3, 2015 due to weather conditions; he was missing for 2 weeks at the time the search was called off. (Source)