what is the grand canyon?

Answer 1

It is a long, deep, relatively narrow steep-sided valley.

How was it made?
The Colorado River was in it's present bed, or one very close to it, long before the Canyon existed. When the Colorado Plateau began to uplift the river simply cut it's way through it as it rose. It did not rise very fast and so the river had plenty of time. Since the upper layers of the Colorado Plateau are composed primarily of sedimentary rock, which erodes easily, the river did not have to work that hard. The river is working much harder now as it is currently running through a rock layer composed of granite which does not erode as easily.

Size
The Grand Canyon is 277 miles (446 km) long and varies in width from 5 miles (8 km) to 18 miles (29 km). It is between 5,000 feet (1,524 meters) and 6,000 feet (1,829 meters) deep.

Age
The Canyon is 5 or 6 million years old. The rock layers at the very bottom of the Grand Canyon are almost 2 billion years old.

How do you get to the bottom?
You have two choices for getting to the bottom. One, walk down, or, two, go on a mule (they have mule trips down).

For some photos:
http://www.hoax-slayer.com/grand-canyon-skywalk.html
(scroll down for this first one)

http://www.rebeccamorn.com/images/gallery3/grand-canyon-sunset-4.jpg

http://www.soultones.com/canyon/canyon5_LG.jpg

http://www.sedonagrandcanyontourcompany.com/images/grand_canyon_cover.jpg

http://www.incadventures.com/images/grand-canyon-couple.jpg

Answer 2

The Grand Canyon is a large chasm located in Arizona. It is the product of about 250 million years of rock eroded by the Colorado River in about 5-7 million years. (That river used to be much bigger than it is now). Any Internet search should give you good info on the Grand Canyon but this is the official site.

http://www.nps.gov/grca/

Answer 3

The Grand Canyon? Thats a slice of the earth!