Talk:Extreme points of British Columbia

Question
One thing I'm not quite clear about. The four points listed--what are they the extremes of? I can see that the first one, Mount Jetté, is the extreme west point, yes? But the second one, the BC-Alberta-NWT point, is not obvious. It's not the eastern extreme, obviously. The northern extreme? But isn't the whole northern border "equally extreme"?

Also, I can't help but wonder whether the northern boundary, and the straight portion of the eastern boundary with Alberta, are actually wholly aligned with the lines of latitude and longitude, or whether they are based, at least in part, on official surveys. And if so, does it matter? The extreme eastern point, on the US border, is given as slightly off from the 49th parallel. But the BC-ALB-NWT point is given as exactly 60 N 120 W. Perhaps it's too remote a spot to have been surveyed like the US border. Then again, the northwestern point, at Mount Jetté, is listed as not quite 60 degrees north, which implies the northern boundary is not wholly aligned to 60 N.

Another point that might be worth listing other "other notable" is the southernmost land point, since the southernmost point is in the Strait of Juan de Fuca. Would the southermost land point be at Race Rocks? To be more precise, perhaps ?

I might be able to find info about the easternmost point at the BC-Alberta-US border. There's probably a survey monument there, so there's probably info about it. I'll check. Also, I'll see what additional info I might have about Cape Muzon and whether 54-40 is the actual point, slightly offshore. Should the boundary dispute be mentioned? The US government's position would have BC's northern water boundary at a different location, no? Then again, the page is about BC, not the US, so perhaps the dispute is irrelevant. Pfly (talk) 05:39, 13 September 2010 (UTC)


 * Found useful info from the International Boundary Commission. In some cases IBC boundary info led me to more precise coords from the NGS (the BC-AB-MT boundary monument especially). I've added what I can with this data so far. Interesting that the IBC--a joint international boundary management agency--defines the boundary in Dixon Entrance as the A-B Line. The points are called "Point A of the award" and "Point B of the award". Looking at IBC and NGS boundary and survey coords, it's pretty obvious that Mt Jette is point 177 and that the US-Canada boundary runs from there to point 178, but the BC-Yukon boundary is set at the 60th parallel. That is, there's no survey monument or anything. So the boundary is simply the 60th parallel, plain and simple. I was wrong in my comments above on Mt Jette (mainly I hadn't read the page closely enough--I also missed that Race Rocks was already mentioned, etc). Will see what else I can find. Probably not much more. Pfly (talk) 08:02, 13 September 2010 (UTC)

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