On the National Park Service"s Founders Day, we"re here on the North Rim of Grand Canyon National Park in Arizona peering out at the stunning vista. Can you see the rectangular hole in the canyon wall near the top of the image? That"s Angels Window. Brave hikers can make their way up to the trail above it, but the window itself is best viewed from various points along the North Rim. Far down below is the Colorado River. Beginning about 6 million years ago, it gradually carved downward through countless layers of sedimentary, igneous, and metamorphic rock. The Colorado and its tributary streams continue to deepen and widen the Grand Canyon even today.
Happy anniversary to the National Park Service!
Today in History
More Desktop Wallpapers:
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International Womens Day
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I ll call for pen and ink
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In the Navajo Nation for Code Talkers Day
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Spring awakens
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Vacuum Chamber 5 at Glenn Research Center
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In the path of the pronghorn
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Red squirrel in Cairngorms National Park, Scotland
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Is that a face in the sand?
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Surfer s paradise
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Entoloma hochstetteri mushroom at Lake Mahinapua, New Zealand
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Pretty, pretty…butterfly?
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Surströmming Day
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Speed skaters in the Gangneung Oval, Pyeongchang, South Korea
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International Day for Monuments and Sites
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Clark Range, Yosemite National Park, California
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Green fields of grain
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Ruins of a royal temple
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World Olive Tree Day
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Galeries Lafayette, Paris
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Wayag Islands in the Raja Ampat Islands of Indonesia
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Venture into a prehistoric gallery of art
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Ancient storage in the Grand Canyon
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Rice processing in Bangladesh
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Channel Country, Australia
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Golden Gate Bridge, San Francisco
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Third Thai-Lao Friendship Bridge connecting Laos and Thailand
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Atolls in the Maldives
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Balloon Ascension Day
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Batten down the hatches
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Trevi in bloom
Bing Wallpaper Gallery


