Fact check: Devil’s Tower is not a tree 

Correction August 24, 2020: A previous version of this check said, “Casper Planet’s post cites, which does not exist.” The post actually cites a non-existing website called This typo has been corrected in paragraph 9.

Reuters Fact Check. REUTERS/Axel Schmidt

Update August 24, 2020: Updating paragraph six to include statement from the National Park Service.

Social media users have been sharing content claiming that scientists discovered that the Devil’s Tower butte in Wyoming is originally a giant tree after finding “an incredibly large petrified root system” underneath it. This claim is false.

Examples can be seen  here  and  here .  

One post reads: “DEVILS TOWER US...ORIGINALLY A GIANT TREE. 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 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.” ( here

Reuters could not find a statement like this from the Wyoming State Parks Department. A Google search of the quote does not reveal anything except for posts by blogs and meme pages.

The tower is made up of a rare igneous rock called phonolite porphyry. Geologists do not fully know how it formed and there are different theories on details  here

Nicholos Myers, Supervisory Park Ranger for the Devils Tower National Monument and part of the National Park Service (NPS) confirmed to Reuters via email that this claim is false. He said, “there is no evidence to support such a theory as a tree stump or petrified tree roots,” and directed people to an NPS list of formation theories,  here  .

KGAB AM 650, a local radio station, published an article in August 2017 called “Help spread Wyoming’s new myth.” ( here ) The article urges locals to spread a myth about Devil’s Tower: “You've heard of petrified wood, right? Well, that is what you are looking at when you see the mighty Devil's Tower, here in Wyoming. That's right, it was once a giant tree. Look again. Doesn't that look like a huge tree stump to you? Sure it does.” 

The article cites a Facebook post by “Casper Planet”, who originally started the myth in July 2017 ( here ). The “about” section of the page explains: “Delivering the Snews that doesn’t matter directly to your Snews feed. satire, humor, and opinion, names/locations are made up.” 

Casper Planet’s post cites, which does not exist. The image purportedly showing “the roots” of the tower actually shows the root system of sweet corn at 8 weeks ( here ).  


False. Claim about Devil’s Tower being a tree originated from a satire account.

This article was produced by the Reuters Fact Check team. Read more about our fact-checking work  here  .