Case Details

Tom Opperman went missing on August 8, 1967. His last known location was at Merced Lake, heading out to hike Mount Clark. After hiking Mount Clark, Opperman intended to hike to Glacier Point and return to the valley on August 10, 1967.

During the search for Opperman, 16 marines were brought in to join the search, but Opperman was never found.

Distinguishing Marks

Not Available

Profession / Education

Not Available

Investigative Details

  • Foul Play Suspected: Unknown / Undisclosed
  • Suicide Suspected: Unknown / Undisclosed
  • Cause of Death: Not Applicable

Significant Dates

  • Reported Missing: Tuesday, August 8, 1967 (57 years ago)
  • Date Found: No Date Available

POIs

Last Known Location

Viewers since 1/2/2024

Monday, January 8, 2024 (1 year ago)

Missing NPF Public Identification Number (MPID) 10124

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  • Yosemite National Park
    Yosemite National Park
  • Remains Found - Pending ID
  • Reported Missing: 07/29/67 (58 years ago)
  • Found: 09/04/67 (57 years ago)

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