6Great Sand Dunes National Park, Colorado
Located in southern Colorado, this park features North America’s tallest dunes. They are the result of southwestern desert sand being blown up against the famous Rocky Mountains. You can see peaks that are 14,000 feet high as well as wetlands and marshlands.
The park is also home to a large variety of birds. No motorized vehicles are permitted here but you can hike up 750 feet and slide down the dunes on a disk. The closest cities are three hours away but you can camp at Piñon Flats Campground. There are also numerous hike-in backpacking campgrounds available.
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