Exploring the Earth and Sky of the West

Great Sand Dunes National Park, Colorado

Great Sand Dunes National Park, Colorado
Walking along the dune crests at sunset.
Great Sand Dunes National Park, Colorado
Sunset over the Great Sand Dunes. Note the sunlight catching the thin layer of sand being blown across the surface, no more than a few inches above the ground. Saltation in action!
Great Sand Dunes National Park, Colorado
Great Sand Dunes National Park, Colorado
Looking north towards the Sangre de Cristo Mountains at sunset.

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