The person at the center of this case
Quang Trong Than, 66-year-old male
Missing Person · Open - Unsolved
4 years waiting · since 2022
Missing Person: Quang Trong Than
Justice for Quang Trong Than, 66-year-old male — the trail went cold in 2022, but the truth hasn't.
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Key leads to think about
📍
location
Lead #1Why did Than wander toward Tinemaha Creek drainage instead of remaining at the base? Was he disoriented or responding to something specific?
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evidence
Lead #2His untouched gear cache at Red Lake suggests he did not return to retrieve supplies—did he become lost immediately or suffer an accident?
⏰
timeline
Lead #3The 20-minute period when hiking partners lost sight of Than at the summit—what occurred during this window that may have prompted his descent?
Quang Trong Than, a 66-year-old from Huntington Beach, California, disappeared on August 21, 2022, while hiking at Split Mountain in Inyo County. He separated from his hiking group at the base of the summit approach and was last observed beginning to wander toward Tinemaha Creek drainage. Despite an exhaustive multi-agency search involving the National Park Service and Inyo County, no trace of Than or his gear has been found, leaving his whereabouts and fate unknown.
Case
#1724
National Park Service - Sequoia and Kings Canyon National Park; Inyo County
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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.
💡
clue
Lead #4Given the exhaustive search found no trace, did Than fall into terrain not visible from standard search patterns, or did he leave the immediate area?
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 MP158783. Missing person: Quang Trong Than.
Last known contact: 2022-08-21 in Split Mountain, Inyo, CA. Circumstances: Quang Than, a 66-year-old male from Huntington Beach, CA, separated from his hiking group at the base of the ascent to Split Mountain.
Than waited at the bottom of the approach to the summit (coordinates for approximate point last seen: 37.025776°, -118.422293°) while his two hiking partners attempted the summit. Than was visible to his hiking partners most of the way to the summit, although they lost sight of him for about 20 minutes.
One hiking partner observed Than stand up and begin wandering down in the direction of the Tinemaha Creek drainage. Upon returning Than's last known location, his hiking group could not find him.
Than's hiking party were unable to locate any sign of him on their return hike. Than's gear cache was untouched near Red Lake.
An exhaustive multi-agency search including Sequoia and Kings Canyon National Park and Inyo County could not locate and signs of Than. Demographics: 66 years, Male, Asian.
Physical description: 5 ft 5 in, 135 lbs, hair: Black, eyes: Brown. Clothing and accessories: Accessories: Red/black trekking poles; sunglasses with neck loop; gray headlamp; Accessories: Deuter daypack - red color - 16 to 20 liter pack; Clothing: Mountain Hardwear pullover - blue two tone; Clothing: Gray zip off hiking pants; Clothing: Gray sun hat with neck protector; Footwear: Merrell Moab 2 Mid hiking boots.
Investigating agency: National Park Service - Sequoia and Kings Canyon | NP22258447 | 2022-08-23.
Timeline of Events
👁️
2022-08-21
Last Sighting at Split Mountain
Quang Than last observed standing up and beginning to wander down toward Tinemaha Creek drainage while his hiking partners continued toward the summit
👤
2022-08-21
Than Reported Missing
Upon return to the base, hiking group could not locate Than; exhaustive search initiated by National Park Service and Inyo County
🕵️
2022-08-23
Multi-Agency Search Launched
Sequoia and Kings Canyon National Park and Inyo County conducted extensive search; gear cache at Red Lake remained untouched
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:August 21, 2022
Last Updated:September 27, 2026
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Phone: 5595654228
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Case Information
Incident:August 21, 2022
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