Alamosa and Saguache Counties, CO Photo - A Surprising Place to get Wet. Great Sand Dunes National Park and Preserve in Alamosa and Saguache Counties in Colorado.

A surprising place to get wet -- but also a handy place to then get dry (except when it's raining) -- is Great Sand Dunes National Park and Preserve in Alamosa and Saguache counties in Colorado. One finds the obligatory dunes of sand here -- in fact, the tallest in North America, rising in one spot 750 feet above the floor of the San Luis Valley. But to get to a large swath of them, one must wade across one of several (usually shallow) streams flowing along the sand mounds' edge. Most visitors actually relish that opportunity. The streams erode the edge of the dune field, and sand is carried downstream. The water disappears into the ground, depositing sand on the surface. Winds pick up the deposits of sand, and blow them up onto the dune field once again.

Carol M. Highsmith (born 1946) is a photographer, author, and publisher who has photographed all 50 of the United States, the District of Columbia, and Puerto Rico for 30 years. She specializes in documenting architecture, ranging from the monumental to the everyday and whimsical. Highsmith is donating her life ’s work of more than 100,000 images, copyright-free, to the Library of Congress, which established a rare one-person archive. Out of 14 million images, the Carol M. Highsmith collection is featured in the top six alongside of Mathew Brady and Dorethea Lange. Credit line: Photographs in the Carol M. Highsmith Archive, Library of Congress, Prints and Photographs Division.

Credit line: Photographs in the Carol M. Highsmith Archive, Library of Congress, Prints and Photographs Division.