When Dirks called for rescue workers, they were almost as shocked to hear about a quicksand trap as he was. “You have to scratch your head for a second going, ‘What? Did I hear that right?’” said John ...

A hiker was rescued from quicksand last week in Arches National Park, reigniting long-dormant fears of a geologic phenomenon once featured prolifically in films, video games and nightmares. The big ...