Lost on the Shivwits Plateau: The Floyd Roberts Disappearance (2016)
In June 2016, 52-year-old experienced hiker Floyd Roberts vanished on the remote Shivwits Plateau in Grand Canyon National Park. An in-depth investigative case review.
CRIME ARCHIVES
Month: September 2026
Vanished into the Abyss: The Drake Kramer Grand Canyon Case (2015)
In February 2015, 21-year-old Drake Kramer vanished near Bright Angel Lodge on the South Rim of the Grand Canyon. An in-depth investigative report into...
The Final Patrol of Ranger Randy Morgenson: Kings Canyon Mystery (1996)
The legendary 28-season High Sierra ranger Randy Morgenson vanished on patrol at Rae Lakes in 1996. An in-depth investigative analysis of the search, the...
The Vanishing on Upper Yosemite Fall: The Case of George Penca (2011)
In June 2011, 30-year-old George Penca vanished while hiking down the crowded Upper Yosemite Fall trail with twenty church members. An in-depth investigative case...
The Vanishing of River Guide Morgan Heimer: Grand Canyon Mile 213 (2015)
In June 2015, professional river guide Morgan Heimer vanished while wearing a bright blue life jacket on the shore of Colorado River Mile 213...
The Silent Vanishing of Polly Melton: Great Smoky Mountains (1981)
In September 1981, 58-year-old Polly Melton walked 100 feet ahead of her friends on a flat picnic trail in Great Smoky Mountains National Park...
Vanished in Daylight: The Unsolved Disappearance of Trenny Gibson (1976)
In October 1976, 16-year-old Trenny Gibson vanished while hiking Clingmans Dome trail with 40 high school classmates. An in-depth investigative report into the case...
The Vanishing of Ranger Paul Fugate: Chiricahua Monument’s 40-Year Mystery
On January 13, 1980, lead NPS Ranger Paul Fugate stepped onto a trail in Chiricahua National Monument and vanished. The only on-duty law enforcement...