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 hiking alone in Olympic National Park, and what was his intended route or destination?
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evidence
Lead #2What condition was his vehicle in when found, and were there any personal items or clues inside?
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clue
Lead #3Given his unusual attire (Hawaiian shirt, khaki shorts, flip-flops), was he prepared for a serious hiking expedition or was this an unexpected outing?
Gilbert Mark Gilman, a 47-year-old man, 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, the circumstances of his disappearance remain unclear—whether he became lost on the trail, suffered an accident, or met another fate. 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.
👁️
witness
Lead #4Were there any other hikers or park visitors who saw Gilman that day or noticed anything unusual at the Staircase Ranger Station?
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
Gilbert Gilman last seen hiking
Gilbert Mark Gilman was last seen hiking in Olympic National Park in Thurston County, Washington on June 24, 2006.
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2006-06-24
Vehicle discovered at Staircase Ranger Station
Gilman's vehicle was located at the Staircase Ranger Station off State Route 101 after his disappearance.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:June 24, 2006
Last Updated:September 26, 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:September 26, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 3607865500
You can remain anonymous