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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Behold the blood moon
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World Otter Day
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US Coast Guard: Protecting us for 105 years
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Dr. Martin Luther King, Jr. Memorial in Washington, DC
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Río Negro, Amazon basin, Brazil
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World Meerkat Day
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Native American Heritage Month
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Chilling out in the Arctic
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From pirate port to nature preserve
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Mount Hamilton, near San Jose, California
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Eurasian red squirrel in Northumberland, England
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Golling Waterfall, Salzburg, Austria
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Sunrise at Grand Teton National Park, Wyoming
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Old man s whiskers growing wild
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How green is my valley
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Birds of a feather flocking together
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Chittorgarh Fort, Rajasthan, India
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In the Red Sea for World Dolphin Day
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Groundhog Day
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Lavender fields in Plateau de Valensole, France
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A lush, green escape
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The perfect canvas for an ancient text
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Feature Attraction: 85 years at the drive-in
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A wassailing we go
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Happy trees = Clean air
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India Republic Day
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Formal garden at Château de Villandry, Loire Valley, France
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Bonsai Rock, Lake Tahoe, Nevada
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World Theater Day
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Palazzo Zuccari, Rome
Bing Wallpaper Gallery

