New Release: Great Sand Dunes National Park

Fullscreen Slideshow
A lone cottonwood tree displays golden autumn foliage at the edge of the sand dunes and mountains in Colorado's Great Sand Dunes National Park at sunset.
Unexpected Autumn
The tallest sand dunes in North America tower over cotton wood trees during a colorful autumn sunset in Colorado's Great Sand Dunes National Park.
Autumn Encore
A golden cottonwood tree during peak fall foliage at the base of sand dunes and mountains in Colorado's Great Sand Dunes National Park.
Autumn's Exhale
Dramatic layers of light and shadow at sunset in Colorado's Great Sand Dunes National Park, which is home to the tallest sand dunes in North America.
Dramatic Dunes
Evening light shines on a lone cottonwood tree displaying golden fall foliage at the edge of the expansive dune fields of Great Sand Dunes National Park.
Timing is Everything
A black and white photograph of sunlit sand dunes and cottonwood trees under a dramatic cloud in Colorado's Great Sand Dunes National Park.
Mimicry
Fall foliage and a dramatic sunset frame the sand dunes of Colorado's Great Sand Dunes National Park as two hikers trek along the crest of the dunes.
Sunset on the Dunes
A lone cottonwood tree displays golden autumn foliage at the edge of the sand dunes and mountains in Colorado's Great Sand Dunes National Park at dusk.
Dunes at Dusk
The tallest sand dunes in North America tower over cotton wood trees during a colorful autumn sunset in Colorado's Great Sand Dunes National Park.
Afterglow