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Kristen Moulton | The Salt Lake Tribune Visitors use rocks and pebbles to create whimsical art on the red-sand beaches of Coyot Kristen Moulton | The Salt Lake Tribune Visitors use rocks and pebbles to create whimsical art on the red-sand beaches of Coyot Kristen Moulton | The Salt Lake Tribune Visitors use rocks and pebbles to create whimsical art on the red-sand beaches of Coyot Kristen Moulton | The Salt Lake Tribune Visitors use rocks and pebbles to create whimsical art on the red-sand beaches of Coyot Courtesy | Riley Rackliffe Hikers pose for a picture beside a cairn garden in Queen's Garden area of Bryce Canyon. Courtesy | Laura Smith Kasmer Cairns alongside a well-marked trail in Coyote Gulch, Escalante. Courtesy | Tom Schilling A field of cairns sits along the trail to Corona Arch near Moab in May 2015. Courtesy | Tom Schilling A field of cairns sits along the trail to Corona Arch near Moab in May 2015. Kristen Moulton | The Salt Lake Tribune Visitors use rocks and pebbles to create whimsical art on the red-sand beaches of Coyot Scott Sommerdorf | The Salt Lake Tribune A cairn left behind by some intrepid climber or explorer at Storm Mountain, Sunday, Oc Francisco Kjolseth | Tribune File Photo A long line of visitors stretches out along the sandstone as people make the three-mile