[Abert]

So where is the highest point of the mountain? Bivouac.com, Peakbagger and some trip reports on this site say it's in Canada. ListsofJohn says it's in the US. The maps (the ones that I've seen, at least) and the new Andrew Kirmse prominence database say it's in the US.

[Randito]

Not sure why there is confusion:

Armstrong

And Bivouac.com entry says

[Stefan]

I agree too that Canada point is higher when you are there.

[Gimpilator]

When in doubt, better to do both. Lots of peaks have nearly equal height summits, but far apart. I can think of a handful in WA and many more around the country. You'll feel better not leaving any doubt.

[raising3hikers]

[mike]

Here's an old scan...

[cartman]

Having been there and making certain I went to the highest point, the summit is in Canada about 100 yards north of the pylon. It's a short class 2/3 scramble up a rocky bit. I wandered around the very broad summit plateau just to confirm there was nothing higher from any other perspective, and there isn't. The map Randyhiker references is wrong.

[DIYSteve]

Maybe the U.S. map elevation is incorrect (too high) or maybe the Canadian map elevation mark is incorrect (too low). More likely, both are incorrect. Surveying on the Z axis in wilderness is an imprecise exercise. Marking high points to single digits (meters or feet) is deceptive precision because there's no way surveying methods used to make these maps accurately resolve to 1 meter (or in the case of most U.S. maps, 1 foot) on the Z axis. The Canadian and U.S. respective elevation marks resulted from reference to two different control points. Surveyors and we attorneys who handle boundary line disputes have seen lots of this (although usually on XY axis), e.g., adjacent lots, each a part of different contiguous plats, each surveyed with reference to different control points. (Sometimes they manifest in an overlap, while other times they result in a "no mans land.") This is a good reminder that elevation markings are only as good as the control points and limits of measurement methods used to determine elevation.

[BigBrunyon]

US is higher in my book! US is always higher when theres a dispute!!!!

[Randito]

If GPS measurements indeed show the Canuck high point higher, #45 could call in an air strike and ensure that the US is always #1. What could go wrong?

[ale_capone]

Speaking of monuments, and which is really the tallest.. The new cascadian monolith in Seattle.. tallest building?

[Cyclopath]

[RichP]

If the highpoint is in Canada, might as well continue out on the ridge several miles for an even higher mountain. Watch out for border patrol though. http://www.peakbagger.com/peak.aspx?pid=1777

[pcg]

[RichP]