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Grand Canyon

By lesliea
What a Beautiful sight so vast enjoyed every minute with a helicopter ride to the bottom and a boat trip on the Colorado river.

The Grand Canyon (Hopi: Ongtupqa; Yavapai: Wi:kaʼi:la) is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. It is contained within and managed by Grand Canyon National Park, the Hualapai Tribal Nation, and the Havasupai Tribe. President Theodore Roosevelt was a major proponent of preservation of the Grand Canyon area, and visited it on numerous occasions to hunt and enjoy the scenery. It is considered one of the Seven Natural Wonders of the World.

The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,000 feet / 1,800 metres). Nearly two billion years of the Earth's geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted. While the specific geologic processes and timing that formed the Grand Canyon are the subject of debate by geologists, recent evidence suggests the Colorado River established its course through the canyon at least 17 million years ago. Since that time, the Colorado River continued to erode and form the canyon to its present-day configuration.

For thousands of years, the area has been continuously inhabited by Native Americans who built settlements within the canyon and its many caves. The Pueblo people considered the Grand Canyon ("Ongtupqa" in Hopi language) a holy site and made pilgrimages to it. The first European known to have viewed the Grand Canyon was García López de Cárdenas from Spain, who arrived in 1540.
The Colorado River basin (of which the Grand Canyon is a part) has developed in the past 40 million years. A recent study places the origins of the canyon beginning some 17 million years ago. Previous estimates had placed the age of the canyon at 5 to 6 million years. The study, which was published in the journal Science in 2008, used uranium-lead dating to analyze calcite deposits found on the walls of nine caves throughout the canyon. There is a substantial amount of controversy because this research suggests such a substantial departure from prior widely supported scientific consensus.

The result of all this erosion is one of the most complete geologic columns on the planet.

The major geologic exposures in the Grand Canyon range in age from the 2 billion year old Vishnu Schist at the bottom of the Inner Gorge to the 230 million year old Kaibab Limestone on the Rim. There is a gap of about one billion years between the stratum that is about 500 million years old and the lower level, which is about 1.5 billion years old. This large unconformity indicates a period of erosion between two periods of deposition.

Tags: Landscape and travel

Voters: EMJAYCEE, bagman, gwynn56 and 23 more

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9 10 10 England
10 Nov 2012 8:57PM
Wonderful capture of this amazing placeSmile
This leaves me feeling very jealous - I never got a helicopter ride or a river trip.Sad

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EAS 9 1 13 Scotland
10 Nov 2012 9:20PM
My, but you seem to have an amazing near world trip! Another spectacular image.

NeilWigan Plus
7 17 16 England
10 Nov 2012 11:03PM
great write up to a cracking landscape .
10 Nov 2012 11:54PM
A beautiful image of a very photogenic part of the world Allen
RonnieAG Plus
8 154 118 Scotland
11 Nov 2012 12:25AM
A quite spectacular view of this spectacular canyon, Allen.
11 Nov 2012 4:37AM
A beautiful landscape & the information too. Thanks for sharing
moiral 7 12 Scotland
11 Nov 2012 9:09AM
What a view - superb Allen. Moira
scrimmy Plus
9 389 5 Scotland
11 Nov 2012 9:45AM
Grand Canyon ...grand image Smile
CaroleS Plus
7 433 3 United Kingdom
11 Nov 2012 10:08AM
saltireblue Plus
7 7.9k 33 Norway
11 Nov 2012 10:35AM
That must have been a memorable trip, Allen.

If I may, it reminds me of a joke I heard...

An elderly couple in the States were interviewed on the occasion of their Golden Wedding by the local newspaper. The reporter asked what the secret of their long marriage was. "Never arguing or disagreeing", the old man said. The wife nodded silently in agreement. "How have you managed not to argue through 50 years?", asked the reporter.
"We were on honeymoon at the Grand Canyon and hired two mules to take the trip to the bottom. On the way down the mule stumbled, spilling my bride to the ground. She got up, dusted herself down, looked the mule in the eyes and said, "That's once". A while later it happened again, this time my bride looked deep into the mule's eyes and said, "That's twice". Near the bottom of the canyon, the poor mule stumbled again, throwing my bride to the ground. "That was the third and final time" she said, pulled out her pistol and shot the mule dead. I felt this was very harsh and started to say so. My bride looked me deep in the eyes and said, "That's once..."

Beautiful Allen, you have really shown the varying depths of the areas , it almost looks 3D...Lynette Grin
Great capture nicely composed with beautiful depth.
Well done. WesternRed.
Ridgeway 11 222 2 Ireland
19 Nov 2012 12:41AM
A fantastic shot,what breath taking sight,would love to see it,,nice informed write up.


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