Canyon

Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Canyon shopping experience:

1. Compare - without doubt the biggest advantage that the Canyon offers shoppers today is the ability to compare thousands of Canyon at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.

2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about

3. Testimonials - don't know anybody that has bought a Canyon? Wrong! If the Canyon is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.

4. Questions - Got a question about Canyon then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....

5. Reputation - Never heard of the company selling Canyon? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Canyon and build up a picture of their reputation for sales, returns, customer service, delivery etc.

6. Returns - still worried that even after all of the above your Canyon wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.

7. Feedback - happy with your Canyon then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.

8. Security - check for the yellow padlock on the Canyon site before you buy, and the s after http:/ /i.e. https:// = a secure site

9. Contact - got a question about Canyon, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.

10. Payment - ready to pay for your Canyon, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.

For the song, see CANYON.MID. For the band, see Canyon (band). image:Grand_Canyon.jpg.jpg, Arizona complex and canyon in Armenia.

A canyon (rarely cañon) or gorge is a deep valley between cliffs often carved from the landscape by a river. Most canyons were formed by a process of long-time erosion from a plateau level. The cliffs form because harder rock (geology) strata that are resistance (geology) to erosion and weathering remain exposed on the valley walls. Canyons are much more common in arid areas than in wetter areas because weathering has a lesser effect in arid zones. Canyon walls are often formed of resistant sandstones or granite. Submarine canyons are those which form underwater, generally at the mouths of rivers. The word canyon is Spanish in origin (cañón). The word canyon is generally used in the United States, while the word gorge is more common in Europe and Oceania, though it is also used in some parts of the United States and Canada. The rare word defile is occasionally used in England.

A famous example is the Grand Canyon in Arizona. In the southwestern United States, canyons are important archeology because of the many cliff-dwellings built there, largely by the earlier inhabitants, Ancient Pueblo Peoples.

Sometimes large rivers run through canyons as the result of gradual geologic uplift. These are called entrenched rivers, because they are unable to easily alter their course. The Colorado River (U.S.) and the Snake River in the northwestern United States are two examples of tectonic uplift.

Canyons often form in areas of limestone rock. Limestone is to a certain extent soluble, so cave systems form in the rock. When these collapse a canyon is left, for example in the Mendip Hills in Somerset and Yorkshire Dales in Yorkshire, England.

Largest canyons

Grand Canyon in Arizona, USA
Copper Canyon in Chihuahua State, Mexico

The definition of "largest canyon" is rather imprecise, as a canyon can be "large" by its depth, length, or the total area of the canyon system. Also the inaccessibility of the major canyons in the Himalaya contributes to their not being regarded as candidates for the biggest canyon. The definition of "deepest canyon" is similarly imprecise, especially if one includes mountain canyons as well as canyons cut through relatively flat plateaus (which have a somewhat well-defined rim elevation).

The Yarlung Tsangpo Canyon, along the Yarlung Tsangpo River (Tibet) in Tibet, China, is regarded by some as the deepest canyon in the world, and is even slightly longer than Grand Canyon. Hence it is regarded by many as the world's largest canyon, followed by the Kali GandakiIf one measures the depth of a canyon by the difference between the river height and the heights of the highest peaks on either side, the Kali Gandaki Gorge is the world's deepest. The portion of the river between the Dhaulagiri and Annapurna massifs is at an elevation of between 1300 metres and 2600 metres, 5500 to 6800 metres lower than the two peaks. See Annapurna (1:100,000 map), Nepal-Kartenwerk der Arbeitgemeinschaft für vergleichende Hochgebirgsforschung Nr. 9, Nelles Verlag, Munich, 1993. Also see Google Earth. in Nepal, Polung Tsangpo Canyon in Tibet, Cotahuasi Canyon (3,535 m deep and the deepest in the Americas), and the Tekezé River (2000m+ deep and deepest in Africa).

Slot canyons are very narrow canyons, often with smooth walls.

Other well-known canyons

Avon Gorge in Bristol, England
Blyde River Canyon in Mpumalanga, South Africa
Black Canyon of the Gunnison, Colorado, USA
Canyon Fortaleza in Cambará do Sul, Brazil
Nazare Canyon , Portugal
Canyon Guartelá in Tibagi, Brazil
Cañon del Sumidero in Chiapas, Mexico
Cataract Gorge in Launceston, Tasmania, Australia
Cheddar Gorge in Somerset, England
Colca Canyon along the Colca River in Arequipa, Peru one of the deepest canyons in the world with 3269 meters.
Columbia River Gorge in the Pacific Northwest of America.
Cotahuasi Canyon along the Cotahuasi River in Arequipa, Peru, the deepest canyon in the world with 3535 meters.
Fish River Canyon in Namibia
Glen Nevis in Lochaber, Scotland
Grand Canyon of Pennsylvania located in the Tioga State Forest in Pennsylvania, USA
Grand Canyon of the Yellowstone located within Yellowstone National Park in Wyoming, USA
Verdon Gorge in Provence, France
Gorges d'Ardèche, in France
Gorges du Tarn in France
Hells Canyon in Idaho and Oregon, USA
Ironbridge Gorge in Shropshire, England
Itaimbezinho in Cambará do Sul, Brazil
Kloof in Kloof, South Africa
Komati Gorge, South Africa
Lanner Gorge, South Africa
Malacara in Praia Grande, Brazil
Palo Duro Canyon in Texas, USA
Pankisi Gorge in Georgia (country)
Red River Gorge in Kentucky, USA
Royal Gorge in Colorado, USA
Samaria Gorge in Crete, Greece
Tara River Canyon in Montenegro
Taroko Gorge in Taiwan
Three Gorges in China
Kings Canyon National Park in California, USA
Vikos Gorge in Greece

Other lesser-known canyon systems include:

Black Dragon Canyon in Utah, USA
Swaan River makes many gorges in Pothohar plateau Pakistan.

The Blue Mountains west of Sydney in New South Wales, Australia contain many gorges carved into the sandstone rock.

Canyons on other planetary bodies

Valles Marineris on Mars is the largest known canyon in the solar system
Ithaca Chasma on Saturn's moon Tethys (moon)