Mark Winston Hill, 35, was last known to be driving to a remote campsite near the small town of Washington in Nevada County, California, on June 13, 1994. About two weeks later his vehicle was found abandoned at that unattended campsite, and the Nevada County Sheriff’s Office opened a missing person case on June 27, 1994.

At the time he disappeared Mark was described as a Caucasian male, 6 feet tall, weighing between 200 and 225 pounds, with brown hair and brown eyes. Beyond the abandoned vehicle, the circumstances of his disappearance and what he may have had with him are not detailed, and the case has gone cold with no significant public leads.

Did anyone in the Washington area or campers who used those campsites in June 1994 notice anything unusual around the time Mark disappeared?