A strong wind catches the top of a dune and blows it back towards the Sangre de Cristo Mountains in the Great Sand Dunes National Monument, Colorado.
Shifting winds cause sharp ridges on the crest of a dune in the Great Sand Dunes National Monument, Colorado.
Swirling winds catch sand and form a small sand devil in Great Sand Dunes National Monument, Colorado.
Swirling winds create a heart shape of blowing sand in the Great Sand Dune National Monument, Colorado.
A small pool of light remains on the darkened side of a dune in the Great Sand Dunes National Monument, Colorado.
A lone crow flies out across the Great Sand Dunes National Monument in Colorado
A dead tree reaches out from the edge of a dune while others still cling to life at the Great Sand Dunes National Monument, Colorado.
Medano Creek skirts the edge of the Great Sand Dunes National Monument in Colorado.
High winds sweep sand from a tall dune in the Great Sand Dunes National Monument, Colorado.
A lone cloud peeks over the edge of the dunes suggesting moisture in the Great Sand Dunes National Monument, Colorado.