In a Sept. 19, 1996 file photo, the serpentine Escalante River carves its way through sandstone landscape on its way to Lake Powell about 40 miles away to the south. William Martin LaFever, 28, who is alutistic, lived on a few frogs he caught and roots as he wandered for at least three weeks in the remote Escalante Desert of southern Utah until being rescued on Thursday, July 12, 2012. LaFever, of Colorado Springs, Colo., told rescuers he drank water from the Escalante River while attempting to walk from Boulder, Utah, to Page, Ariz., a distance of approximately 90 miles or more by the route he appeared to be taking. (AP Photo/Salt Lake Tribune, Al Hartmann, File)
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