The Grand Canyon is a steep-sided canyon carved by the Colorado River in the state of Arizona in the United States.
The Grand Canyon is 446 km long, up to 29 km wide and attains a depth of over 1,800 meters.
The Grand Canyon is over 10 million years old.
The Ancient Pueblo People were a Native American culture centered on this area. The Ancient Puebloans were the first people known to live in the Grand Canyon area.
Spanish explorers
In September 1540 Captain Garcia Lopez de Cardenas and a small group of Spanish soldiers explored the Grand Canyon. He became the first European to see the Grand Canyon.
Afterwards, no Europeans visited the Canyon for over two hundred years.
American exploration
- James Ohio Pattie, along with a group of American trappers and mountain men, may have been the next European to reach the Canyon in 1826.
- In 1858, John Strong Newberry became probably the first geologist to visit the Grand Canyon.
- In 1869, Major John Wesley Powell led the first expedition down the Canyon.
Weather in the Grand Canyon varies
Temperatures vary wildly throughout the year, with summer highs commonly exceeding 37.8 °C and winter minimum temperatures sometimes falling below zero degrees Fahrenheit (−17.8 °C).
The forested rims are high enough to receive winter snowfall, but along the Colorado River in the Inner Gorge, temperatures are very high.
The record high temperature on the South Rim was 40.5 °C, and the record low temperature was -28.9 °C
Fauna of the Grand Canyon
There are 34 mammal species found along the Colorado River corridor.
Only 48 bird species regularly nest along the river, while others use the river as a migration corridor or as overwintering habitat. The bald eagle is one species that uses the river corridor as winter habitat.
There are approximately 1,737 known species of vascular plants found in Grand Canyon National Park.
Grand Canyon National Park is one of the world's premier natural attractions, attracting about five million visitors per year.
Grand canyon is a wonder of the world