This photo provided by the Arizona Department of Transportation shows the buckling of U.S. 89, about 25 miles south of Page, Ariz., Wednesday Feb. 20, 2013. The Arizona Department of Transportation is rerouting motorist off the heavily traveled highway between Arizona and Utah on to other roadways. ADOT says what caused a 150-foot section of pavement to buckle is not related to the weather and might be what ADOT calls a "geologic event." (AP Photo/Courtesy of the Arizona Department of Transportation)
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