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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Here we honor the women who ve served
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It’s National Walk to Work Day
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Skaftafell, Vatnajökull National Park, Iceland
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Make way for robots
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Happy Syttende Mai!
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Yarn bombing in the village of Gurnard, England
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Aspens in the White River National Forest, Colorado
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Relationship status: It s complicated
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Why do elephants hide in trees?
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A day for the dolphins
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Kinder Scout, Peak District National Park, England
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Christmas Bird Count turns 125
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Bathing boxes at Brighton Beach, Australia
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Duomo Santa Maria del Fiore, Florence
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Ahh-tumn
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In praise of the old…the very old
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Kochelsee in Bavaria
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Kings of the Kalahari
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Making it work—in Norway
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Celebrating all things Austen
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Gray days ahead in Monterey
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International Day of the Worlds Indigenous Peoples
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Falling for the Canadian Rockies
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Composite of photographs from the Apollo 15 mission
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Hey neighbor, it s World Space Week!
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Horse Head Rock, New South Wales, Australia
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International Rock Day
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Keep watching the skies
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Tide pools in La Jolla, California
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World Environment Day
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