evidence: On 31 July 2017, the Facebook page "Casper Planet" posted a message with the claim that the Wyoming State Parks Department had discovered a large network of tree roots beneath the base of Devil's Tower (which, if you have never been, you may recognize from the film Close Encounters of the Third Kind): [...] A huge and startling discovery has been made at the Devils Tower in Wyoming. 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. We are currently conducting studies and tests to confirm that this is actually a root system and not a coincidence." This discovery is on the edge of rewriting history and science as we know it. [...] In this case, "Casper Planet" is mocking a conspiracy theory, which springs out of flat-earth theory, holding that most mountains are simply the remains of ancient, gargantuan trees. Although "Casper Planet" did include a genuine photograph of Devil's Tower, the pictured root system has little to do with the famous igneous rock formation in Wyoming. The image is actually a diagram showing how the roots of sweet corn have developed after eight weeks: