Devils Tower is a rock formation, despite wrong, recycled claims on social media

Devils Tower — 1,267 feet of rock rising above the Belle Fourche River in Wyoming — is the first national monument, designated by President Theodore Roosevelt in 1906. It’s also a sacred place for Native American tribes, and geologists have studied its formation since the late 1800s.

But a Facebook post claims there’s been a new discovery that "will change history." 

"Scientists from the Wyoming State Parks Department were conducting photographic seismic readings below the tower when they discovered an incredibly large petrified root system below the tower," the post says. "The parks department released a statement saying, ‘We have discovered what looks like a giant root system stemming from the base of the Devils Tower. The root system has been measured at 4 miles deep by 7 miles wide. We are currently conducting studies and tests to confirm that this is actually a root system and not a coincidence’."

It’s not a coincidence, and this claim is also "completely false," according to a spokesperson for Wyoming state parks.

This post was flagged as part of Facebook’s efforts to combat false news and misinformation on its News Feed. (Read more about our partnership with Facebook.)

Featured Fact-check

Instagram posts

stated on March 28, 2024 in an Instagram post

Three rockets NASA is launching during the April 8 solar eclipse is “a ritual causing mass psychosis.”

The false information originated on a satire site, said Gary Schoene, public information office manager for Wyoming State Parks, Historic Sites & Trails. The department has released no statement about a possible root system. Plus, Schoene said, because Devils Tower is a national monument, it’s part of the National Park Service system — not the state parks system. 

Geologists still wonder how the tower formed, but do know it’s formed of a rare igneous rock called phonolite porphyry, according to the National Park Service website.

Geologists agree that the tower started as magma, but there’s no consensus on how exactly the magma cooled to form the tower, according to the site.

The information in the Facebook post is fake, and it’s also not new. Snopes debunked it back in 2017, after a Facebook page that posts satire published the claims. Other fact-checkers looked into it in 2020. 

It’s 2021, and it’s still wrong. We rate this post False.