This place wasn"t built overnight—nature took its time to craft this masterpiece. What you see at Arches National Park, Utah, is the result of over 300 million years of erosion, uplift, and weathering. These arches were formed when salt beds were left behind by ancient seas. Over time, layers of sandstone cracked, shifted, and slowly wore away, revealing more than 2,000 natural arches. These formations are made mostly of Entrada and Navajo sandstone. The park was recognized as a national monument in 1929 and was later upgraded to national park status in 1971.
Delicate Arch, Arches National Park, Utah
Today in History
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National Fossil Day
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Chilling out in the Arctic
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A universe underground
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Wildebeests in Maasai Mara, Kenya
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A festival of colors
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A walk among the giants
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Of moose and Maine
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Christmas Tree Point Road and Twin Peaks, San Francisco
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Nubble Island’s only industry
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An avian predator built for the snow
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World Rivers Day
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Endangered Species Day
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A memorial in Germany
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St. Michaels Mount in Marazion, Cornwall, England
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Shark Awareness Day
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50 years of the Endangered Species Act
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International Geodiversity Day
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Unbearable cuteness
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Miravet, Catalonia, Spain
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Christmas Eve
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World Migratory Bird Day
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Borobudur Temple, Java, Indonesia
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National Take a Hike Day
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Combating extinction with citizen science
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Wildcat in a winter wonderland
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Tortula moss, Netherlands
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Dr. Martin Luther King, Jr. Memorial in Washington, DC
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International Museum Day
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Armbrug bridge, Amsterdam, Netherlands
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Asian American and Pacific Islander Heritage Month
Bing Wallpaper Gallery

