A giant chasm opened up in Wyoming's Bighorn Mountains.
A group of hunters stumbled upon a large "crack" 10 miles south from Ten Sleep, Wyoming, on Oct. 27, reports KTVQ.
SNS Outfitter & Guides posted an explanation of the crack on its Facebook page :
“An engineer from Riverton, [Wyoming] came out to shed a little light on this giant crack in the earth. Apparently, a wet spring lubricated across a cap rock. Then, a small spring on either side caused the bottom to slide out. [The engineer] estimated 15 to 20 million yards of movement. By range finder, an estimate is 750 yards long and about 50 yards wide.”
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Seth Wittke, a geological manager with the Wyoming Geological Survey, described the event as a landslide.
“Without getting out there and looking at it, I can’t be positive, but from what I’ve seen on the Internet it looks like a slow-moving landslide,” Wittke told Grind TV.
The geological manager agreed with the engineer's explanation for the gaping hole in the Bighorn Mountains.
“A lot of landslides are caused by subsurface lubrication by ground moisture or water and things like that, or in this case, a spring,” he said.
Wittke added the incident was a “fairly small event given the overall aspect of how big landslides can be.”
He also claimed the hole can continue to grow if there is room for it to move.