Another post on Facebook by SNS outfitters stated an opinion by a local engineer,
An engineer from Riverton, WY 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. He estimated 15 to 20 million yards of movement.With no earthquakes and a small amount of movement recorded by the USGS we will have to go with that explanation until someone comes up with another. Quite a find during a weekend hunt and beats a few of the "trophies" we have seen.








Comment: Though not much publicized, the Earth's rotation has been measured to be slightly slowing. Could this phenomenon have partly contributed to the Wyoming event?