Monday, February 25, 2019

Grand Canyon - USA

Grand Canyon offers wonderful views. It is definitely one of the world's most famous natural attractions, visited each year by about five million visitors. Maybe one day I get to visit it too but I've to say that USA are not on the top of my must visit list.

All these view are great but my favorite is definitely the snowy view. Most of these are official cards, except for the 4th one that it was sent by Carol and the last is a RR card sent by Colleen. 

Photo: Chuck Lawsen
US.5817024, sent by Celestyn.
The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,093 feet or 1,857 meters).

 US-72347, sent by Shain
The canyon and adjacent rim are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation.

Photographer: 1986 James Blank
US-5820168, sent by Anne.
President Theodore Roosevelt was a major proponent of preservation of the Grand Canyon area, and visited it on numerous occasions to hunt and enjoy the scenery.

Nearly two billion years of Earth's geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted. While some aspects about the history of incision of the canyon are debated by geologists, several recent studies support the hypothesis that the Colorado River established its course through the area about 5 to 6 million years ago. 

Photographer: Dennis Flaherty
US-5187985, sent by Dedria
Since that time, the Colorado River has driven the down-cutting of the tributaries and retreat of the cliffs, simultaneously deepening and widening the canyon.

For thousands of years, the area has been continuously inhabited by Native Americans, who built settlements within the canyon and its many caves. The Pueblo people considered the Grand Canyon a holy site, and made pilgrimages to it. The first European known to have viewed the Grand Canyon was García López de Cárdenas from Spain, who arrived in 1540. - in: wikipedia

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