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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Great Backyard Bird Count
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Opt outside today
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On the rebirth of the Olympic Games
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Fin whales: A success story
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Nature Photography Day
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A view from the top
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J.R.R. Tolkien Day
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Let’s go foraging
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National Llama Day
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Toledo, Spain
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Ringing in the new year at Teotihuacan
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Glenariff Forest Park, Northern Ireland, UK
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National Find a Rainbow Day
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Honoring those who served
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Invisible no longer
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A long path to freedom
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Astronomy Day and National Public Lands Day
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Happy winter solstice!
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Can you see the family resemblance?
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Welcome to the Ring of Fire
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Celebrating migrations
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World Giraffe Day
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The Guggenheim Bilbao turns 25
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A sleeping green giant
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Ocracoke Lighthouse on Ocracoke Island, North Carolina
Bing Wallpaper Gallery

