Parmenter (left) and Liana Welty navigate across the dune field, Great Sand Dunes National Park, Colorado.
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Photo credit: © CI2 / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: adult, america, caucasian, color, colorado, day, dune, dunes, great, herard, hiker, horizontal, image, man, mount, mountain, national, north, outdoors, park, people, recreation, sand, states, united, usa, woman