Why is the Grand Canyon a natural landmark?

Grand Canyon is considered one of the finest examples of arid-land erosion in the world. Incised by the Colorado River, the canyon is immense, averaging 4,000 feet deep for its entire 277 miles. It is 6,000 feet deep at its deepest point and 18 miles at its widest.



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The Grand Canyon is considered one of the natural wonders of the world largely because of its natural features.

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20 Amazing Grand Canyon Facts
  • Grand Canyon National Park is bigger than the entire state of Rhode Island. ...
  • The Hopi Tribe considers the Grand Canyon a gateway to the afterlife. ...
  • Temperatures vary greatly within the canyon. ...
  • The canyon is full of hidden caves. ...
  • In 1909, the canyon was the site of a giant hoax.


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Impress Your Friends With These Fun Facts!*
  • We don't really know how old it is. ...
  • Grand Canyon creates its own weather! ...
  • There are no dinosaur bones in the canyon. ...
  • But there are lots of other fossils in the area. ...
  • There's a town down in the canyon. ...
  • We're missing 950 million years worth of rocks!


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However, the significance of Grand Canyon is not limited to its geology. The Park contains several major ecosystems. Its great biological diversity can be attributed to the presence of five of the seven life zones and three of the four desert types in North America.

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The Grand Canyon is indeed a very big hole in the ground. It is 277 miles (446 km) long, up to 18 miles (29 km) wide and more than a mile (6,000 feet / 1,800 meters) deep. It is the result of constant erosion by the Colorado River over millions of years.

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Some scientists believe that the Grand Canyon is 70 million years old. Others contend that the natural wonder is only between five and six million years old. Both are right. Scientists examined rocks from the Grand Canyon with the so-called thermo chronology method.

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A large sandstone boulder contains several exceptionally well-preserved trackways of primitive tetrapods (four-footed animals) which inhabited an ancient desert environment. The 280-million-year-old fossil tracks date to almost the beginning of the Permian Period, prior to the appearance of the earliest dinosaurs.

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For the Hopi, it's a very spiritual place because of the Sipapuni, where we emerged from into this world. And it's where we go back to when we leave this world. I've felt an energy down there that is unreal. They say our ancestors dwell in the canyon, and I definitely feel that.

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Sixty million years ago, the Rocky Mountains and the entire Colorado Plateau, which the Grand Canyon is part of, rose up from tectonic activity. After the top layers of rock (green) eroded away, the Colorado River grew powerful and began to cut its way through the ancient rock, leaving the stunning canyon we see today.

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