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It is 322 miles according to Google Maps.
Great Sand Dunes National Monument was created in 1932.
Great Sand Dunes National Park and Preserve is a United States National Park located in the San Luis Valley, in the easternmost parts of Alamosa County and Saguache County, Colorado, United States. It is not far from the town of Alamosa, Colorado.
Large piles of sand are called dunes.
There are only two sand dunes in Michigan. The two sand dunes are Sleeping Bear Dunes and Sliver lake sand dunes.
sept 13 2004
the largest sand dunes
sand dunes change