Right On, Utrecht.. This is the Great Sand Dunes NP of Colorado.. I had a nice jaunt up on top at dawn.. Thank you for your nice comments, it makes my day when people take time to let me know how I'm doing.. This photo is one of my favorites as well. Would you believe me if I told you this was taken with a $100 dollar point and shoot?
You know I like lots of your photos, but this one stands out even more in my opinion. The one with the blue-ish look is great as well by the way. I see Alamosa County as location, that's Great Sand Dunes NP, Colorado, right? Happy Travels!