A 17-year-old male from Rifle died Sunday afternoon after falling off a cliff in the Flat Tops in Garfield County, near the Rio Blanco County line. The teen, who has been identified as Zachary Collett, was with his girlfriend at the time of the accident. The initial report indicated that Collett had fallen from the cliff and was not moving. When search and rescue members reached the body, about 3 ½ hours later, they confirmed that Collett had died. An autopsy yesterday found the accidental death was caused by multiple blunt force injuries.