Quicksand In Popular Recreation Area

Above, Frankenstein's monster (Glenn Strange) and Dr. Niemann (Boris
Karloff) in quicksand in House of Frankenstein (1944). Universal Pictures.

When I was a kid, it seemed like a lot of movies of that era had a fixation on quicksand. One in particular was not really quicksand, but rather a way to trap humans into an alien spaceship. That movie was Invaders From Mars (1953). It was creepy.

The National Park Service has issued a warning about quicksand at a popular recreational area.

RV Travel posted the following:

The National Park Service is warning travelers heading to public lands in the Southwest about a potential hazard they may not expect: quicksand. Officials at the Glen Canyon National Recreation Area, which spans the Utah–Arizona border, say quicksand has recently been found near shorelines and in drainage areas throughout the park. Be careful!