Great Sand Dunes National Park has the tallest dunes in North America, reaching heights of 750 feet above the surrounding valley. The Great Sand Dunes are a product of wind and “walls” formed by the surrounding […]
Great Sand Dunes National Park has the tallest dunes in North America, reaching heights of 750 feet above the surrounding valley. The Great Sand Dunes are a product of wind and “walls” formed by the surrounding […]