Hidden below the prairie at Wind Cave National Park, you’ll find something unexpected: one of the longest caves on the planet. This site includes 140 miles of explored passageways. What’s above ground is equally special, as the prairie supports one of the most genetically pure herds of bison in the country.
National Park Week: Wind Cave National Park
Today in History
More Desktop Wallpapers:
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Swim city
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China s colorful terraced pools
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A history of Vinland
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The monsoon arrives in the desert
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Busy building wetlands
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Zion National Park Turns 100
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Four Sisters, thousands of trees
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Hello, spring!
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Happy anniversary to the National Park Service!
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Porto, Portugal
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World Oceans Day
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Once upon a time there was a bridge…
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Feature Attraction: 85 years at the drive-in
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Celebrating World Art Day
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Stuben am Arlberg, Austria
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A grotesque scene
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World Meteorological Day
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Gem State views
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Green sea turtle on World Oceans Day
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Notes from an underground lake
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Paro Tsechu Festival in Bhutan
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World Book Day
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Hoodoos, Sunset Point, Bryce Canyon National Park, Utah
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The mighty, mighty mushroom
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Old Town of Rovinj, Croatia
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The otherworldly red river
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A ‘city’ within Valencia
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Yi Peng Festival in Chiang Mai, Thailand
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Lakeside serenity in Finland
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Huntington Beach Pier, California, at sunset
Bing Wallpaper Gallery

