2. Is Itlocated in Arizona, United States, in the Great
Canyon National park.
The Colorado River crosses the southeastern United States
Its length is approximately 2500m. Is surrounded by
Desert plains of colorado, Utah, Arizona, Nevada, California,
Baja California and Sonora. It is born at the foot of the Rocky Mountains
In Colorado
ON THEIR WAY THROUGH THE STATE OF ARIZONA CREATES ONE
OF THE GREATEST NATURAL WONDERS, THE GRAND COLORADO
CANYON.
3. GEOLOGY:
The most of sedimentary rocks are 2000 million years old.
An exception is the sandstone that it was deposited in the same way
That the desert dunes.
The river at present is actively eroding its banks increasingly
Bringing to ligth oldest rocks.
-The conditions that ocurred during glaciations of water collected.
The consequence was that the river increased the speed and depth
Of the erosion process during the actually.
5'3 million years ago, and the level of the river changed course
When the Gulf of California and descended the river level was opened.
The hanging walls of the canyon were created by erosion. A million
Years ago, volcanic ash and lava over the area.
4. Population:
The carbon dating by willow twigs representing
animals found redtos state
that are prior to 3000 years.
Desert dwellers were hunters and gatherers
EXPLORATION:
The first european who watched the Grand
Canyon was García López Cárdenas
5. Activities:
Rafting and hiking are especially popular. The valley is accessible by foot, mule
or boat. The tour of the Canyon is dangerous because of the high temperatures,
so often there are warning signs along the tracks that run through the Grand
Canyon
6. CLIMA:
SPRING: Mind-April winter ends,althougth frequent snowfall in May.
Spring is characterized by breezes and winds, and a dry climate with
Little rainfall.
Athougth there may be frost.The last time was in June.
SUMMER: There is an average temperature (27-32 Degrees Celsius).
Thunderstorm and Flash flood. Some storms produces much hail,
strong winds and cyclones may.
7. AUTUMN: Autumn is cooler than the summer(16-21 Degrees Celsius)summer rains
are lowerThan in September, with a dry season ando low precipitation. There are also
showers in late summer and small snowstorms
.
WINTER: Usually begins in November with nevadasby cold weather.
(-17and -7 Degrees Celsius) and the maximum temperature is (4-15)
Winds are few ans there ir frost. Early, spring there may be fog, usually clears
In the morning
