BY KEVIN JONES
I had been told of an alcove that held a small, sheltered archaeological site up a canyon west of Blanding, Utah. One morning I hiked up the bottom of the wash, scrambling over tumbled boulders and slogging through loose sandy gravel in the dry creekbed. Brightening light showed that the canyon widened just ahead, and as I rounded an angular, upturned boulder, the ceiling of an alcove arched above me. I had reached the site...