Off-Nadir Delta

Hiker Brian Seibert dies in fall on Mount Morgan in Mono County

Titles and summaries are AI-extracted from news reporting; every source is linked below. Event id 3f683f56-aaa8-4620-a371-f7b17db6f8e5.

Where
Mt. Morganresolved to block37.511, -118.780
When
Occurrence date not stated by reportingFirst reported 2026-10-11 · last update 2026-10-12
Sourcing
5 reports5 outlets carrying it · independence not established
How far this got
pinpointednamed facility unresolvedThis signal has no sensor recommendation, so there is nothing specific to look for.

Summary

On October 11, 2026, 53-year-old hiker Brian Seibert died following a fall while descending Mount Morgan. Seibert, who had been attempting to summit the peak, sent a final text message before the accident occurred near the base of the Grad Central Couloir. Following an extensive search effort involving Mono County Search and Rescue and partner agencies, Seibert's body was recovered the next morning by a Yosemite National Park helicopter and a YOSAR crew. A campfire was also detected at Davis Lake during the period surrounding the incident.

What imagery could confirm

Which satellite to use, what to look for and why. Part of the event detail on Pro.

What remains unresolved

  • named facility unresolved

Timeline

9 recorded change(s). The ledger starts when this event was first folded: the initial observation is not recorded as a change, so an empty timeline means nothing has moved since, not that nothing is known.

  • 2026-10-13member countour measurement4 → 5reports joined

5 more change(s) — the values are part of the event detail on paid plans. 3 change(s) before the history shown here.

Sources

Grouped by outlet. Syndication is not collapsed, so several outlets can carry one wire story — the count is breadth of carriage, not independent confirmation.

Related events

0 related event(s) and 2 place(s) or facilities — the same facility, place, actor or campaign. Part of the event detail on Pro.

Reproduce over the API (free endpoint)

bash
curl "https://offnadir-delta.com/api/v1/events/3f683f56-aaa8-4620-a371-f7b17db6f8e5/thread" \
  -H "Authorization: Bearer ond_YOUR_API_KEY"

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