I saw this on Facebook today. Of course it was from a woo woo source saying "aliens":
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It is a real formation Between 20 and 30m high. It is a huge block of limestone that fell off of cliff. You can see two climbers on the left side of it. One on the ground and they other a bit over 3/4 of the way up. I wanted to see where it came from but I only could find this one particular photograph, but enough sources referred to it to know that it was a real thing.
I finally found a site that gives directions to it. But again, no picture of the cliff that it came from. But a slightly different angle on the block:
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I will include the link for anyone that wants to find it. It is the last hike on the link, so if you do a quick scroll to the bottom you will save some time:
Goosebumps on your arms views! Geology roadlog for curving roadtrip from the basin to the top of the Bighorn Mtns & back to the basin on Hwy US 14 & 14 Alt
www.geowyo.com