First 14er to succumb to the elements?

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Jim Davies
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Re: First 14er to succumb to the elements?

Postby Jim Davies » Tue Aug 14, 2012 3:14 pm

zoomie83 wrote:Did they repaint the row of seats at Coors Field that was at 5280'?

Since the USGS revised the geoid in 1991, the Rockies probably got it right the first time. :)
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Re: First 14er to succumb to the elements?

Postby MountainHiker » Tue Aug 14, 2012 3:25 pm

The North American Vertical Datum of 1988 added around 5 to 8 feet to Colorado fourteener heights compared to the National Geodetic Vertical Datum of 1929 (the elevations you usually see.) They didn’t get taller. It was a revised vertical model for elevations. That addition to the elevations is more than will likely be lost to sea level rising in our lifetimes. Future generations might see erosion and rising sea level take away some fourteeners. A more profound question is, will they care?
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Jim Davies
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Re: First 14er to succumb to the elements?

Postby Jim Davies » Tue Aug 14, 2012 3:27 pm

The real question is, will the metric system completely take over first?
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Re: First 14er to succumb to the elements?

Postby Matt Lemke » Tue Aug 14, 2012 3:28 pm

The Colorado Rockies are actually very stagnant as far as growing or shrinking is concerned (at least the Sawatch, Park and Front Range uplifts) These 3 uplifts contain such a dense and hard rock base that they are eroding very slowly...much slower than they should be for gneissic and granitic mountains. As for the San Juans and Elks...that's another story. They are eroding much quicker and are actively shrinking and erosion will certainly do a number on these peaks well before anything in the Sawatch, Park or Front Ranges.

And when Rainier blows, it will be much worse than Saint Helens. The ash or pyroclastic flows won't even be a concern when compared to the lahars thhat will flood the valleys all the way to Tacoma and possibly all the way up the Valley to Renton where, dare I say, I call home.

Good thing we live on one of the hills lol
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Re: First 14er to succumb to the elements?

Postby ztop » Tue Aug 14, 2012 3:29 pm

TravelingMatt wrote:
Floyd wrote:I think this site should group together and stack 13 feet of rocks in the Bross/Lincoln saddle, making Bross unranked (softranked?). That'll end the debates about that pile of rubble.


Bross already is soft ranked, with only 293' of clear prominence (14172-13879).


I show Bross as having 312' of prominence from the saddle, but regardless it's over a mile from Lincoln so it's "official."
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Re: First 14er to succumb to the elements?

Postby Tony1 » Tue Aug 14, 2012 3:58 pm

I think, for the Pyramid example, it depends a lot on what exactly the rock at the summit is. There's the rock that is still actively part of the mountain (can that still be called "bedrock"?) and then there is the rock that just sits on top of that, ready to fall down if triggered.

Is Pyramid's summit bedrock or loose, piled up rock? It seems like it would take a large force (more than just gravity) to cause Pyramid's summit to become part of a rockslide. When I was up there it seemed very stable and not something I'd worry about falling down the mountain.
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Re: First 14er to succumb to the elements?

Postby TravelingMatt » Tue Aug 14, 2012 4:05 pm

ztop wrote:I show Bross as having 312' of prominence from the saddle, but regardless it's over a mile from Lincoln so it's "official."


Bross does have 312' of interpolated prominence (14172 - 13860), but only 293' of clean prominence. For clean prominence, if we don't have a spot elevation, we use the highest possible elevation for the col and/or the lowest possible elevation for the summit. In the case of Bross this is 13840 + 39 = 13879'. (But I guess you could argue it should be 13879 feet, 11 inches.)
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Re: First 14er to succumb to the elements?

Postby jdorje » Tue Aug 14, 2012 4:48 pm

TravelingMatt wrote:Bross does have 312' of interpolated prominence (14172 - 13860), but only 293' of clean prominence.


That means to unrank it, all you have to do is officially determine the saddle elevation and show that it's at least 13873'.
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Re: First 14er to succumb to the elements?

Postby myfeetrock » Tue Aug 14, 2012 9:58 pm

Maroon peak after a very long cold winter and a very wet spring and the northeast face slides off. Same weather scenario on Capitol and a few days of rain and a strong freeze and boom! the north or south face slides off. I'm no geologist but all that rock on a narrow summit has to give at some time.
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Re: First 14er to succumb to the elements?

Postby San Juan Ron » Wed Aug 15, 2012 10:00 am

My bet would be Sunshine. It only has 1' to spare and slides in the area are commonplace. Several large rock and mudslides this year came off of it's neighbor (Sundog) and closed the Shelf Road. SJ Ron
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Re: First 14er to succumb to the elements?

Postby Scott P » Wed Aug 15, 2012 10:10 am

My bet would be Sunshine. It only has 1' to spare and slides in the area are commonplace.


Worth noting that currently, the most accurate elevation for Sunshine is probably 14,006'.
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Re: First 14er to succumb to the elements?

Postby Jelgan » Wed Aug 15, 2012 10:14 am

Jim Davies wrote:The real question is, will the metric system completely take over first?


We can only hope!

On that subject, does anyone know if Bill has reservered the 4267m-ers.com domain yet?

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