The person at the center of this case
Mark Winston Hill
Missing Person · Open
32 years waiting · since 1994
Missing Person: Mark Winston Hill
Justice for Mark Winston Hill — the trail went cold in 1994, but the truth hasn't.
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Key leads to think about
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location
Lead #1Why was Mark's vehicle found at the campsite but Mark himself was not? What happened between his arrival and the vehicle discovery?
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evidence
Lead #2What condition was the vehicle in when discovered? Were there any personal belongings or clues inside?
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timeline
Lead #3What was the exact timeline between June 13 and June 27? Were there any sightings or contacts during those two weeks?
Mark Winston Hill, a 35-year-old male, went missing on June 13, 1994, while driving to a remote campsite in Nevada County near Washington, California. His vehicle was discovered at the campsite approximately two weeks after his disappearance, but Mark himself has never been found. Despite the passage of decades, the circumstances of his disappearance remain unclear and the case remains unsolved.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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clue
Lead #4Was there any evidence of foul play, accident, or voluntary disappearance at or near the campsite?
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Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP158239. Missing person: Mark Winston Hill.
Last known contact: 1994-06-13 in Washington, Nevada, CA. Circumstances: Mark was last know to be driving to a campsite in a remote area of Nevada County near the town of Washington.
His vehicle was located at the campsite approximately 2 weeks after the last known contact with Mark Demographics: 35 years, Male, White / Caucasian. Physical description: 60 ft 0 in, 200 lbs, hair: Brown, eyes: Brown.
Investigating agency: Nevada County Sheriff's Office | 19402392 | 1994-06-27.
Timeline of Events
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1994-06-13
Last known contact
Mark Winston Hill was last known to be driving to a remote campsite in Nevada County near Washington, California.
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1994-06-27
Vehicle discovered
Mark's vehicle was located at the campsite approximately 2 weeks after last known contact. Investigation initiated by Nevada County Sheriff's Office.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:June 13, 1994
Last Updated:July 7, 2026
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Phone: 5302651471
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Case Information
Incident:June 13, 1994
Last Updated:July 7, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5302651471
You can remain anonymous