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 traveling to this remote campsite, and did he reach it safely?
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evidence
Lead #2What condition was the vehicle in when found, and were there any signs of foul play or accident?
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timeline
Lead #3What happened between June 13 and June 27 that prevented Mark from being located with his vehicle?
Mark Winston Hill, a 35-year-old man, disappeared 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 later, but Mark himself has never been found. The circumstances of his disappearance remain unclear, and investigators continue to seek information about what happened to him in that remote area.
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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 #4Were there any witnesses who saw Mark or his vehicle in the remote Nevada County area during this period?
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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 was last known to be driving to a campsite in a remote area of Nevada County near the town of Washington.
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1994-06-27
Vehicle Located
Mark's vehicle was discovered at the campsite approximately 2 weeks after last known contact.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:June 13, 1994
Last Updated:July 10, 2026
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Phone: 5302651471
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Case Information
Incident:June 13, 1994
Last Updated:July 10, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5302651471
You can remain anonymous