Explore the Great Sand Dunes National Park near Alamosa, Colorado. Experience true dark sky, see the stars!
Explore Great Sand Dunes National Park: Colorado's Most Surprising Adventure If you've never stood at the base of the tallest sand dunes in North America, it's difficult to appreciate just how incredible they really are. Rising more than 700 feet above the valley floor, Great Sand Dunes National Park and Preserve is one of Colorado's most unique destinations. Giant mountains of sand stretch toward the sky while the snow-covered Sangre de Cristo Mountains create one of the most dramatic backdrops you'll find anywhere in the state. Whether you're visiting for a day or planning a longer vacation in Southern Colorado, the dunes are an unforgettable experience for every age. Why Are There Sand Dunes in Colorado? It's one of the questions visitors ask most often. Over thousands of years, wind carried sand from the ancient floor of the San Luis Valley until it became trapped against the Sangre de Cristo Mountains. The result is a landscape unlike anything else i...