The person at the center of this case
Jonathan Mark McNabb
Missing Person · Open - Unsolved
28 years waiting · since 1998
Missing Person: Jonathan Mark McNabb
Justice for Jonathan Mark McNabb — the trail went cold in 1998, but the truth hasn't.
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Key leads to think about
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location
Lead #1Why was McNabb only 1.5 miles outside the park boundary when last seen—did he never reach the trail, or was he intercepted before entering the park?
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evidence
Lead #2No definitive sign was found despite extensive search efforts—what happened to his body, equipment, or personal effects?
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timeline
Lead #3The 2-day gap between his planned return (Feb 8) and the search notification (Feb 9) may have been critical—what delayed the overdue report?
Jonathan Mark McNabb, a 28-year-old hiker, disappeared on February 7, 1998, after setting out to hike the Colony Mill Trail toward Sequoia National Park's Lodgepole area from Three Rivers, California. He was last seen dropped off near North Fork Drive and Shepherd Saddle Road, about 1.5 miles outside the park boundary, and failed to return as planned on February 8th. Despite an extensive multi-agency search involving helicopters, ground teams, and search dogs launched on February 10th, no definitive trace of McNabb has ever been found, leaving his fate unknown after nearly three decades.
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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 #4McNabb was carrying a dark duffel bag and wearing distinctive clothing (dark blue ski jacket, black Levis, black hiking boots)—has any of this gear ever been recovered?
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Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP128174. Missing person: Jonathan Mark McNabb.
Last known contact: 1998-02-07 in Three Rivers, Tulare, CA. Circumstances: Mark McNabb was last seen on February 7, 1998, when he was dropped off just north of the intersection of North Fork Drive and Shepherd Saddle Road in the town of Three Rivers, CA.
Mark intended to hike to the Lodgepole area of Sequoia National Park via the Colony Mill Trail and return to his home on North Fork Drive on February 8th. On February 9, 1998, at approximately 2:00pm, Sequoia National Park Rangers were notified that Mark was overdue from his hike.
Mark was approximately 1.5 miles outside the park boundary when he was last seen. On February 10, 1998, a multi-agency search and rescue effort was undertaken including helicopters, ground search teams, and search dogs.
The search yielded no definitive sign of Mark. Demographics: 28 years, Male, White / Caucasian.
Physical description: 5 ft 8 in, 125 lbs, hair: Brown, eyes: Brown. Clothing and accessories: Accessories: Black baseball cap, dark duffel bag; Clothing: Dark blue ski jacket and black levis; Footwear: Black leather hiking boots.
Investigating agency: National Park Service - Sequoia and Kings Canyon | 800038.
Timeline of Events
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1998-02-07
Last seen at North Fork Drive and Shepherd Saddle Road
McNabb was dropped off just north of the intersection of North Fork Drive and Shepherd Saddle Road in Three Rivers, CA, intending to hike to Lodgepole area via Colony Mill Trail
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1998-02-08
Planned return date
McNabb was expected to return to his home on North Fork Drive on this date but did not arrive
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1998-02-09
14:00Overdue report filed
Sequoia National Park Rangers were notified at approximately 2:00 PM that McNabb was overdue from his hike
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1998-02-10
Multi-agency search and rescue launched
Search effort included helicopters, ground search teams, and search dogs but yielded no definitive sign of McNabb
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:February 7, 1998
Last Updated:September 27, 2026
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Phone: 5595654228
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Case Information
Incident:February 7, 1998
Last Updated:September 27, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5595654228
You can remain anonymous