Kevin Hill was last seen in the Oregon Caves near Cave Junction, Oregon on February 28, 1987. He was described by witnesses as being inside the caves, and his motorcycle was found abandoned near this location, in addition to a campsite with some of his personal items/identification. His vehicle was subsequently found abandoned in Yakima, Washington. It is believed that Mr. Hill most probably abandoned the car in Yakima (where he last lived) and drove the motorcycle into Oregon state. He has not been seen or heard from since. (Information retrieved from NamUs.gov)