At sunset, a cold front descends on the San Luis Valley bringing moisture and strong winds that kick up the dust and sand on the valley floor , adding a sense of drama as the last rays of the sun highlight the dry lake bed and the dune field of Great Sand Dunes National Park nestled below the Sangre De Cristo Mountains to the North.
Taken 04-05-13 Alamosa County, CO

REF # : CO-3749 R-4 D800E 45MM