Dennis Eugene Johnson

Above: Dennis, circa 1966


Vital Statistics at Time of Disappearance

  • Missing Since: April 12, 1966 from Yellowstone National Park, Wyoming
  • Classification: Lost/Injured Missing
  • Age: 8 years old
  • Height and Weight: 3'8, 60 pounds
  • Distinguishing Characteristics: Caucasian male. Sandy blond hair, brown eyes. Dennis's nickname is Denny. He has a six-inch scar on his abdomen running through his navel.
  • Clothing/Jewelry Description: A dark red or magenta long-sleeved shirt, tan Levi's pants and size 8 laced moccasin-type leather hiking boots with crepe soles.
  • Bar

    Details of Disappearance

    Dennis is from Inyokern, California and was camping with his parents and sisters at Yellowstone National Park in Wyoming when he disappeared on April 12, 1966. His seven-year-old sister had gotten lost and he and his father were searching for her in the forest when they decided to split up. Dennis was last seen walking away from his wife at the Cascade Picnic Area, a quarter-mile north of Canyon Junction, at 1:30 p.m. His father found Dennis's sister, but Dennis has never been heard from again and an extensive, two-week-long search of the camp turned up no indication of his whereabouts, not even his footprints.

    Dennis had prior wilderness experiences from going on hunting trips in California with his father in the past, and knew basic survival skills. He is presumed to have become lost or injured in the wilderness, but it's possible he was picked up by a passing motorist on the park road. His disappearance is considered one of Yellowstone's greatest unsolved mysteries.


    Investigating Agency
    If you have any information concerning this case, please contact:
    National Park Service


    Source Information
    Yellowstone Wiki
    The Valley Independent
    Death in Yellowstone: Accidents and Foolhardiness in the First National Park
    by Lee H. Whittlesey
    The Montana Standard-Post
    The Provo Daily Herald
    The San Mateo Times


    Updated 3 times since October 12, 2004.

    Last updated March 8, 2016; clothing/jewelry description and details of disappearance updated.

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