The person at the center of this case
Gilbert Mark Gilman
Missing Person · Open
20 years waiting · since 2006
Missing Person: Gilbert Mark Gilman
Justice for Gilbert Mark Gilman — the trail went cold in 2006, but the truth hasn't.
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Key leads to think about
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location
Lead #1Why was Gilman's vehicle left at Staircase Ranger Station—did he complete his hike or become lost early?
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evidence
Lead #2What search efforts were conducted in Olympic National Park and what terrain challenges may have hindered recovery?
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clue
Lead #3Gilman was wearing flip-flops and bright green Hawaiian shirt—were these items ever recovered or sighted?
Gilbert Mark Gilman, a 47-year-old white male, disappeared on June 24, 2006, while hiking in Olympic National Park near Hoodsport, Washington; his vehicle was found at the Staircase Ranger Station but he was never located. Despite search efforts by Thurston County authorities, the circumstances of his disappearance remain unclear—whether he became lost, injured, or met with foul play. Anyone with information about Gilman's whereabouts or activities that day is urged to contact the Thurston County Sheriff's Office.
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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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witness
Lead #4Were there any hikers or park visitors at Olympic National Park on June 24, 2006 who may have seen Gilman?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP22763. Missing person: Gilbert Mark Gilman.
Last known contact: 2006-06-24 in Hoodsport, Thurston, WA. Circumstances: Gilbert Gilman was last seen hiking in the Olympic National Park in Thurston County, Washington.
His vehicle was located at the Staircase Ranger Station off State Route 101 after his disappearance. Demographics: 47 years, Male, White / Caucasian.
Physical description: 5 ft 7 in, 155 lbs, hair: Brown, eyes: Brown. Clothing and accessories: Clothing: Bright Green Hawaiian style floral shirt, khaki shorts; Eyewear: Prescription sunglasses; Footwear: Flip Flops.
Investigating agency: Thurston County Sheriff's Office | 06-05808-06.
Timeline of Events
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2006-06-24
Last Known Contact
Gilbert Mark Gilman last seen hiking in Olympic National Park near Hoodsport, Thurston County, Washington.
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2006-06-24
Vehicle Located
Gilman's vehicle discovered at Staircase Ranger Station off State Route 101 following his disappearance.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:June 24, 2006
Last Updated:July 22, 2026
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Any information, no matter how small, could be crucial to solving this case.
Phone: 3607865500
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Case Information
Incident:June 24, 2006
Last Updated:July 22, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 3607865500
You can remain anonymous