Grand Canyon
Nature
A river spent millions of years carving this giant gorge.
The Grand Canyon in the American state of Arizona is 446 kilometres long, up to 29 kilometres wide and more than 1,800 metres deep.
It was cut by the Colorado river, which has been wearing its way down through the rock for millions of years. The walls are layers of stone in red, orange and brown, like the pages of a history book.
- long
- 446 km
- deep
- 1,800 m
- at its widest
- 29 km
- 1
The rock at the very bottom is almost two billion years old.
- 2
It is much warmer at the bottom than on the rim: often by more than ten degrees.
- 3
The Havasupai people have lived in the canyon for at least 800 years.
Question 1 of 2
Which river carved the Grand Canyon?
- YellowstoneThe world's first national park sits on top of a supervolcano.
- Golden Gate BridgeThe orange-red bridge across the entrance to San Francisco Bay.
- MississippiThe great river that runs down the middle of the United States.
- TeotihuacanA city of pyramids so old that even the Aztecs did not know who built it.
It is in the United States.
Read about the United States