Great Sand Dunes National Park, Colorado 37.77N 105.54W
https://www.nps.gov/grsa/index.htm
Aerial photo of the San Luis Valley, Colorado winter 2010. Great Sand Dunes NP in center, on western slope of the Sangre de Cristo Mountains. View to the northeast, from over Alamosa CO.
October 2007 Great Sand Dunes National Park, Colorado.
For others from Great Sand Dunes, see “Earth Wind and Fire” or “Four Corners” galleries “Themes” or “Places”