The person at the center of this case
Quang Trong Than, 66-year-old male
Missing Person · Open - Unsolved
3 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.
Start here
Key leads to think about
⏰
timeline
Lead #1Why did Than stand up and wander toward Tinemaha Creek when he was supposed to wait at the base? Was he disoriented or responding to something?
📍
location
Lead #2The 20-minute period when hiking partners lost sight of Than—what happened during this critical window?
🔍
evidence
Lead #3His untouched gear cache at Red Lake suggests he did not return to retrieve supplies. Where did he go without his pack and supplies?
Quang Trong Than, a 66-year-old hiker 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 seen standing up and wandering toward the Tinemaha Creek drainage. Despite an exhaustive multi-agency search by the National Park Service, Sequoia and Kings Canyon National Park, and Inyo County, no trace of Than or his belongings has been found.
Case
#1724
National Park Service - Sequoia and Kings Canyon National Park; Inyo County
Try asking
Claim this imported case
A one-time $10 claim transfers this imported case workspace to your account. You get 10 uploads for this case, 25 daily AI questions for this case, and public tips with files route to you.
10 uploads25 AI questions/day
This does not start a subscription. When the included limits are reached, the Personal plan unlocks more workspace capacity.
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 terrain and exhaustive search coverage, could Than have fallen into a ravine or creek area that was difficult to access or search?
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
daytimeLast Sighting at Split Mountain
Quang Than last seen standing up and beginning to wander down toward Tinemaha Creek drainage while his hiking partners were ascending to the summit.
👤
2022-08-21
afternoonThan Not Found on Return
Upon returning to Than's last known location, his hiking group could not locate him. His gear cache at Red Lake remained untouched.
🕵️
2022-08-23
Multi-Agency Search Initiated
Exhaustive search conducted by National Park Service, Sequoia and Kings Canyon National Park, and Inyo County with no signs of Than located.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:August 21, 2022 at Invalid Date
Last Updated:May 30, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5595654228
You can remain anonymous
Leave a comment
Comments
Case Information
Incident:August 21, 2022 at Invalid Date
Last Updated:May 30, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5595654228
You can remain anonymous