Floyd E. Roberts III, 52, disappeared on June 17, 2016, while hiking in a remote western area of Grand Canyon National Park known as the Shivwits Plateau. An experienced hiker from Treasure Island, Florida, he was on a planned nine-day trek with two companions but separated from them after choosing a different route around a hill near Kelly Tank. He was last seen heading toward Trail Canyon or 214 Mile Canyon wearing a red long-sleeved shirt, blue jeans, multi-colored mesh Nike sneakers and carrying a large blue Lowe Alpine backpack.

Park rangers and mutual-aid ground crews searched more than 10 square miles with aerial support for six days. Search teams found some footprints that could not be confirmed as his, and despite exhaustive efforts no trace of him was located. The large-scale search was scaled back to a continuous, limited mode with rangers and pilots watching for signs during routine patrols and flyers posted in the area.

The disappearance remains unsolved and the investigation is open. Did anyone hiking or working on the Shivwits Plateau in June 2016 see Roberts or notice anything unusual along Trail Canyon or 214 Mile Canyon?