Talk:Canyon

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Contents 1 Begin Talk 2 English canyons 3 Deepest 4 Defile = Canyon?

[edit] Begin Talk

I got the impression from my school geography books that a gorge has a river running though it while a canyon doesn't have one. Does having (or not having) a river make any difference to the definition of the terms canyon or gorge?

I dont think so, there is a river running through the grand canyon and the elora gorge, and most gorges/canyons at one point had rivers or streams running though them to create them.say1988

As far as I know, gorge is the more common name in canada, though the article makes it sem canyon is. At least in southern ontario there are a number of gorges, erlora gorge for example, and no canyons that I know of. Also what is a ravine? it is redirected here, is it a sinonym (sp? word that means the same thing) or is there something tht makes something a ravine? say1988 14:51, August 3, 2005 (UTC)

presumably gorge redirects here, but I noted while looking something up that Chasm redirects to Rift, which isn't right; IMO it should redirect here, to canyon.Skookum1 (talk) 17:48, 21 February 2008 (UTC)

[edit] English canyons

Re: "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 Moors in Yorkshire, England."

I've left this in place but I have misgivings about its accuracy or usefulness (even after I've changed the obviously incorrect Yorkshire Moors - not a limestone area - to the intended Yorkshire Dales). Does a strict definition of canyon include collapsed caves? Cheddar Gorge - presumably the intended example in the Mendip Hills - is (according to the Wikipedia article) not a collapsed cave anyway. What examples are intended in the Dales? Gordale Scar (also not, according to its article, a collapsed cave)? If these count as canyons (which I doubt) direct references would be more useful. Dave.Dunford 10:29, 4 May 2006 (UTC)

Sorry, what is sonoma in the beginning of the article?

what affects things around Canyons

[edit] Deepest

By what measure is the Tsangpo the deepest gorge? I'm tempted to remove or drastically reword this unless there's a cite. In terms of the measure I just added (depth below highest peaks) it does not beat the Kali Gandaki. -- Spireguy 23:44, 14 December 2006 (UTC)

[edit] Defile = Canyon?

Why does the Defile page redirect to the canyon page? Shouldn't defile get its own page since it has two vastly different definitions? Chris37599 (talk) 13:02, 7 December 2007 (UTC)

Done (see Defile (geography). --Philip Baird Shearer (talk) 13:39, 13 April 2008 (UTC)