Talk:Quadripoint
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what about Russia, Mongolia,China Kazakhstan border?
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[edit] Explanation of origin of this article
This article still needs a lot of work. I am planning to write an article tripoint and then come back to quadripoint and fix it up. By way of explanation, this article began as a translation by me of the Dutch article nl:Vierlandenpunt. However, I don't know any Dutch; I just ran it through a machine translator and then figured it out based on similarity to English and German. One thing I realized is that the Dutch word "Vierlandenpunt" is not the same thing as the English word "quadripoint": a Vierlandenpunt is literally a four-country point, while a quadripoint can be four subnational units (e.g. the U.S. Four Corners). In German, the word is "Vierländereck" meaning "four-country corner"; not quite the same thing as "four-country point" but close.
Among other things the images in this article need to be fixed up but I am hopeless at stuff like that. No need for such a large image of Lake Chad, but it needs to be large enough to see that within the lake are two tripoints rather than a single quadripoint. It would be great to have this image from the Dutch wiki. Also there must be photos of the Sweden/Norway quadripoint mentioned in the article. There's a monument at the Manitoba/Saskatchewan/NWT tripoint which may have become a quadripoint with Nunavut (see article); three photos are on this page. Also I like this photo even though it's a bit out of focus.--Mathew5000 21:57, 20 June 2006 (UTC)
[edit] three regions meet at a point...
"three regions meet at a point on the line...": sorry, if a house has four rooms that meet at a point, there are still four corners, even if not all 90 degrees. So explain your point better. --User:Jidanni 2006-10-29
- Here's what I mean. There are four countries meeting at a single point, but only three corners, not four:
- --Mathew5000 20:38, 10 November 2006 (UTC)
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- It's a fair point but a bit pedantic for the intro. I've relegated it to a footnote, if that's ok. I don't see any other way you can have a quadripoint without four corners. jnestorius(talk) 02:40, 11 November 2006 (UTC)
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- The footnote is fine. But there are definitely other ways you could have a quadripoint without four corners. For example, if two of the countries are shaped like ellipses, tangent to one another. Then there is a quadripoint with only two corners. But yeah I agree this is quite pedantic:
- --Mathew5000 04:14, 13 November 2006 (UTC)
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- Indeed. Just about conceivable for one country to define part of its border along a circle of latitude and another to do so along a tangential great circle. If and when that happens, it should definitely take pride of place in the intro para :) jnestorius(talk) 21:49, 13 November 2006 (UTC)
[edit] Marine quadripoint
Looks to me like some kind of borders of Solomon Islands, Tuvalu, Kiribati, Nauru all meet at a point. Going by the various articles, these are not the territorial waters; are they the Exclusive Economic Zone? It might be worth mentioning in any case. jnestorius(talk) 19:47, 10 November 2006 (UTC)
- Apparently these lines are cartographic conveniences with no legal basis quadripoint in the Pacific- No!. jnestorius(talk) 21:45, 13 November 2006 (UTC)
[edit] Non-quintipoint in Colorado
The external link Local Curiosities has a sister page USA County curiosities which lists a possible quintipoint involving 3 counties of Colorado: Jefferson, Boulder and Broomfield. This large scale map suggests that where the SW fragment of Broomfield meets the main body, you have (clockwise from north-west) Boulder-Bloomfield(main)-Jefferson(pincer#1)-Bloomfield(fragment)-Jefferson(pincer#2). However, these detailed maps from the Bloomfield site north-east of quintipoint and south-west of quintipoint suggest either the fragment is an exclave, or it is linked to the parent by a corridor. (Or possibly by an infinitely thin line? Can they do that??) Anyway, no quintipoint. jnestorius(talk) 00:58, 16 January 2007 (UTC)
[edit] United Kingdom: Four Shire Stone
Before 19th century tidying up of local boundaries, the stone did mark the convergence of four counties: Oxfordshire, Warwickshire, Gloucestershire, and a detached portion of Worcestershire. FGB —The preceding unsigned comment was added by FatGravyBoat (talk • contribs) 10:24, 15 February 2007 (UTC).
[edit] United Kingdom: Cambs/Lincs/Northants/Rutland quadripoint
I'm not sure about this one. I've looked at the relevant OS 1:50,000 map (sheet 141) and it seems to show a Rutland/Lincs/Northants tripoint and a Lincs/Cambs/Northants tripoint about 600m apart, with a 2-300m wide 'tongue' of Lincolnshire keeping Rutland and Cambridgeshire(Peterborough UA) apart. FatGravyBoat 10:33, 15 February 2007 (UTC)FatGravyBoat
