|This is the talk page for discussing improvements to the Grand Canyon article.|
|Grand Canyon is a former featured article candidate. Please view the links under Article milestones below to see why the nomination failed. For older candidates, please check the archive.|
|Grand Canyon has been listed as a level-3 vital article in Geography. If you can improve it, please do. This article has been rated as B-Class.|
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|A fact from this article was featured on Wikipedia's Main Page in the On this day... section on February 26, 2009.|
|Wikipedia Version 1.0 Editorial Team / Vital|
- 1 Color of Rocks
- 2 Fatalities in the Canyon
- 3 Infobox image
- 4 No Train ride into the Canyon
- 5 Split or Merge?
- 6 nob?
- 7 Comment on protection
- 8 Age of Grand Canyon
- 9 Challenge to reference
- 10 Correction to distance from Grand Canyon Village to the Hualapai Skywalk
- 11 Edit request on 23 February 2013
- 12 What are the boundaries of the Grand Canyon?
- 13 In popular culture
- 14 Temperature Inversion photos
- 15 Enviromental issues
Color of Rocks
- I suggest that Wikipedia:Reference desk/Science would be a good place to ask your question. I am afraid I do not know the answer. -- Mattinbgn\talk 00:17, 10 June 2009 (UTC)
- It is caused by the redwall limestone layer (which is not naturally red) being stained red by iron oxide which leeches out of the layers above it which contain a fair amount of hematite. The layers containing the hematite are also red, but they are much smaller compared to the underlying layer. I can provide references if you need them. I hope this was helpful in answering your question. Wperdue (talk) 00:25, 10 June 2009 (UTC)wperdue
Fatalities in the Canyon
I own Over The Edge - Death in the Canyon, and oddly enough, I think it is appropriate to include deaths/mishaps as a subject under the topic. Nothing terribly long, and possibly with a link to desert survival topics in general (or hiking?) as there have been avoidable deaths in the canyon. Anyone think I am totally out of line? Backcountry trekking just doesnt cover the gamut of scenarios encountered in the elevation and temp changes, not to mention (although I will) sheer stupidity. Foamking (talk) 06:12, 19 December 2009 (UTC)
As far as I know, there's no Apollo Throne at the Grand Canyon. There's Wotan's Throne, which is what this appears to be, and there's also Apollo's Temple. I'm not changing it because I don't know the Canyon well enough. Awien (talk) 19:51, 4 July 2010 (UTC)
No Train ride into the Canyon
This paragraph is not valid:
"The Coconino Canyon Train is another option for those seeking to take in a more leisurely view of the canyon. It is a 90-minute ride that originates in Grand Canyon National Park at the old Grand Canyon Depot and travels 24 miles (39 km) through the canyon landscapes. The train is made up of 1923 Pullman cars and runs on tracks built in the 1800s."
The train does not travel through Canyon landscapes. It goes from Williams AZ to the Canyon over the flat (and relatively boring) plateau. You will have to get off the train and climb up to the South Rim before you will see the Canyon. —Preceding unsigned comment added by 126.96.36.199 (talk) 22:49, 29 July 2010 (UTC)
Split or Merge?
"The Grand Canyon is a huge rift FILLED with noobS NAMED eHI in the Colorado Plateau that exposes uplifted Proterozoic and Paleozoic strata, and is also one of the 19 distinct physiographic sections of the Colorado Plateau province" — Preceding unsigned comment added by 188.8.131.52 (talk) 16:09, 5 September 2011 (UTC)
- Cluebot fixed that within a minute of the edit. Are you still seeing it? Mikenorton (talk) 16:57, 5 September 2011 (UTC)
Comment on protection
So.. "the free encyclopedia that anyone can edit."? Clearly not! You can't add information that is not scientifically correct, and then go "protect" it. — Preceding unsigned comment added by 184.108.40.206 (talk) 16:18, 22 September 2011 (UTC)
- Could you be more specific? What information in the article do you wish to remove? —hike395 (talk) 16:49, 22 September 2011 (UTC)
I think you should remove the part about the Grand Canyon being 17 million years old. It's just not true. — Preceding unsigned comment added by 777fold (talk • contribs) 15:26, 23 September 2011 (UTC)
- The 17 million year age is well supported by the reliable sources cited, so please bring forward similarly reliable sources that give a different age. Mikenorton (talk) 17:30, 23 September 2011 (UTC)
Age of Grand Canyon
The assertion that Grand Canyon is 17 million years old is neither popular nor well supported. The generally accepted number is between 4.4 and 6 million years old, but probably closer to 5.4 million. Only one source suggests the higher number. Local drainage in an area at the western end of Grand Canyon does not count as earnest downcutting by the Colorado River along its present course. I support changing the number in the early paragraphs, while allowing for alternative ideas further down the article.
http://www.durangobill.com/Paleorivers_preface.html — Preceding unsigned comment added by Zencowboy27 (talk • contribs) 23:12, 9 January 2012 (UTC)
Here is a better additional source: http://www.sciencemag.org/content/321/5896/1634.2.full
- I don't want to change this, cause I'm a linguistic, not geologist, but new studies are suggesting it's 70 million years old. I think that should be in there, when the gurus who know anything about it, glance at the new research. http://www.reuters.com/article/2012/11/29/us-grandcanyon-age-idUSBRE8AS16320121129. kipruss3-not logged in. 220.127.116.11 (talk) 18:01, 2 December 2012 (UTC)
Challenge to reference
(Capertee Valley in Australia is about 0.6 mi/1 km wider and longer than Grand Canyon). This assertion is not supported by the sources provided in the linked wikipedia article, not to mention the Capertee Valley is not listed as a canyon. Plus, it is barely 1/3 Grand Canyon's depth. I don't think the reference is relevant to this article, considering the great number of other very large canyons. I certainly agree, though, that other canyons should be listed in comparison. The problem that arises, however, is how to measure them. It's complicated. Zencowboy27 (talk) 04:33, 11 January 2012 (UTC)
Correction to distance from Grand Canyon Village to the Hualapai Skywalk
Edit request on 23 February 2013
|This edit request has been answered. Set the
In the Grand Canyon Wiki there is a mention of Sky Walk being built and receiving mixed reviews-
1: The price is not 85$ it is 26$ for the Bus pass and 32$ for entry (plus taxes and fee) 2: It is mentioned that the Skywalk is in South Rim which is wrong it should be changed to West Rim. Advar 06:04, 23 February 2013 (UTC)
- Camyoung54 talk 14:39, 23 February 2013 (UTC) Not done If you can find a reliable source that confirms your information, I will grant your edit request.
What are the boundaries of the Grand Canyon?
My understanding, based on Wikipedia and other reading, is that the Grand Canyon is composed of a central canyon and numerous tributary canyons. Is there a more precise definition, e.g., does this include every tributary? Does the canyon end at the rim? I've failed to find anything great on the web, other than a document which talks about the "physiographic rim of The Grand Canyon," along with a VERY LARGE PDF file ( http://geopubs.wr.usgs.gov/open-file/of99-30/gcrim.pdf is over 5 meg). It seems to show boundaries, but I'd be a lot more comfortable if I knew how in the bleep "physiographic rim" relates to definitions in the real world. Can anyone help? --Larry (talk) 04:06, 24 June 2013 (UTC)
In popular culture
We need a new section which talks about the canyon in popular culture, for example, MI2, Independence day etc.. — Preceding unsigned comment added by 2403:7900:ADE1:A1DE:250:56FF:FEA6:404 (talk) 11:32, 1 December 2013 (UTC)
Temperature Inversion photos
http://www.reddit.com/r/pics/comments/1rxdfj/the_grand_canyon_experienced_a_onceinadecade/ http://i.imgur.com/BuD9jia.jpg • Sbmeirow • Talk • 23:43, 2 December 2013 (UTC)
It is not very clear on why there is a debate with the indian tribe about uranium. It could be outdated but it is definitely incomplete. — Preceding unsigned comment added by EricEMckinley (talk • contribs) 06:56, 2 January 2014 (UTC)