Sand dunes in the Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the background, Colorado, United States of America, North America

travel destination photography vertical sand dunes great sand dunes national park and preserve sangre cristo mountains colorado landscape scenics non urban scene day sand mountain beauty in nature nobody shadow clear sky blue pattern national park dry arid extreme terrain rolling landscape mountain range footprint absence journey lost outdoors usa us united states united states of america north america american north american colour image colour color image color outside travel destinations travel no one no one scenery scenic scene scenes nature the natural world landscapes natural beauty