Getting trapped in quicksand is a corny peril of old movies and TV shows, but it really did happen to one unfortunate hiker in Utah's Arches National Park.

The park famous for dozens of natural, sandstone arches gets over 1 million visitors a year, and accidents ranging from falls to heat stroke are common.

Quicksand? Not really - but it has happened at least a couple of times now.

"The wet sand just kind of flows back in. It's kind of a never-ending battle," said John Marshall, who helped a woman stuck in quicksand over a decade ago and coordinated the latest rescue.

On Sunday, an experienced hiker was traversing a small canyon on the second day of a 20-mile backpacking trip when he sank up to his thigh, according to Marshall.

Unable to free himself, the hiker activated an emergency

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