Kenny Veach and the 'M cave'
A Las Vegas hiker and YouTuber vanished in November 2014 while looking for a cave he said had an M-shaped entrance in the desert north of the city.
2014 CE · 36.50, -115.20 · status: unexplained
The account
Kenny Veach had posted that on an earlier hike he found a cave shaped like an 'M' that made his body vibrate, and he went back alone to find it. He was reported missing days after 10 November 2014. His car was at the trailhead and his phone was found on 22 November near an old mine shaft in the Sheep Range, but volunteer and official searches found no trace of him. The cave has never been located. His partner said he had depression and had talked of disappearing; he is presumed dead.
The sceptical view
Abandoned mine shafts, a solo route in rough desert, and his own stated state of mind are the likely explanations.