Up Road Trip 2005 » South Dakota » Wind Cave National Park Slideshow

Wind Cave National Park in South Dakota features one of the world's longest and most complex cave systems. Established in 1903 by President Theodore Roosevelt, it was the seventh U.S. National Park and the first cave to be designated a national park anywhere in the world. The small home below marks the site of the original cave opening discoverd by Tom Bingham in 1881. A whistling sound and waving grasses and bushes nearby attracted his attention as he passed by. Changing atmospheric pressure outside the cave causes the air inside the cave to adjust. when the pressure outside the cave rises, the air outside enteres the cave through any openings; when the pressure outside the cave falls, air leaves the cave. Cave air adjusting to the outside pressure causes the wind for which the cave was named.


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Road Trip 2005 - Montana, Wyoming, South Dakota, North Dakota