Official Source for Summit Elevations

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Re: Official Source for Summit Elevations

Post by rijaca »

Hiking_TheRockies wrote: Mon Mar 08, 2021 2:48 pm
benmangelsdorf wrote: Mon Mar 08, 2021 2:45 pm
Hiking_TheRockies wrote: Mon Mar 08, 2021 2:42 pm
So crazy people don't go up 14ers in their flip flops and jeans. I also think there are a lot of government sites for national parks and wilderness areas, so why not make one for 14ers?
Hiking in jeans and flip flops is cool
Not to the summit of Capitol Peak lol
Somewhere here on the .com is a picture of me and my climbing companions on the summits of the Maroon Bells. We are all wearing blue jeans and I’m wearing a blue Jean jacket.

But I will admit to being somewhat crazy.
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Re: Official Source for Summit Elevations

Post by CaptainSuburbia »

It's always funny to be on popular 14ers and seeing summit signs with different elevations.
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Re: Official Source for Summit Elevations

Post by CheapCigarMan »

Thank you @Scott P
I found your analysis very informative. Thanks for breaking it down. Including your response on the Spire poll thread. It has filled in a lot of the gaps and questions I had.
When is the last time they updated their maps? Perhaps they haven't updated their maps in ages but their online data stays relatively current?

I guess regardless of which list you use or the estimated elevation. Being able to be on top of the world is a gift. I do find this conversation interesting. Thanks.

Here are Colorado's top summits from USGS's online search engine. Filter CO, Summit, Higher than 13900'.

# Ele(ft*) Summit
1 14,426 Mount Elbert
2 14,419 Mount Massive
3 14,413 Gannett Peak (Not Official)
4 14,406 Mount Harvard
5 14,347 Blanca Peak
6 14,334 La Plata Peak
7 14,308 Uncompahgre Peak
8 14,304 Crestone Peak
9 14,285 Crestone Peaks
10 14,285 Mount Lincoln
11 14,275 Grays Peak
12 14,265 Torreys Peak
13 14,262 Longs Peak
14 14,262 Quandary Peak
15 14,258 Castle Peak
16 14,255 Mount Wilson
17 14,249 Mount Antero
18 14,235 Mount Evans
19 14,232 Mount Cameron
20 14,222 Mount Shavano
21 14,196 Mount Princeton
22 14,193 Mount Yale
23 14,186 Kit Carson Mountain
24 14,176 Mount Bross
25 14,170 Mount Belford
26 14,166 Crestone Needle
27 14,150 Mount Sneffels
28 14,144 Maroon Peak
29 14,144 Mount Democrat
30 14,140 El Diente Peak
31 14,140 Mount Oxford
32 14,117 Capitol Peak
33 14,114 Pikes Peak
34 14,114 Tabeguache Peak
35 14,107 Snowmass Mountain
36 14,091 Challenger Point
37 14,088 Mount Eolus
38 14,084 Windom Peak
39 14,062 Ellingwood Point
40 14,062 Humboldt Peak
41 14,062 Missouri Mountain
42 14,062 Mount Lindsey
43 14,058 Mount Bierstadt
44 14,058 North Eolus
45 14,055 Mount Columbia
46 14,055 Sunlight Peak
47 14,048 Handies Peak
48 14,039 Culebra Peak
49 14,039 Redcloud Peak
50 14,035 Little Bear Peak
51 14,032 Conundrum Peak
52 14,025 Wilson Peak
53 14,019 Mount Sherman
54 14,016 North Maroon Peak
55 14,016 San Luis Peak
56 14,012 Huron Peak
57 14,012 Sunshine Peak
58 13,993 Pyramid Peak
59 13,989 Wetterhorn Peak
60 13,986 Stewart Peak
61 13,976 Columbia Point
62 13,976 Mount of the Holy Cross
63 13,976 Mount Ouray
64 13,970 Grizzly Peak
65 13,960 Pigeon Peak
66 13,947 French Mountain
67 13,943 Fletcher Mountain
68 13,940 Ice Mountain
69 13,940 Mount Hope
70 13,940 The Three Apostles
71 13,934 Cathedral Peak
72 13,930 Gemini Peak
73 13,917 Mount Adams
74 13,914 Pacific Peak
75 13,911 Casco Peak
76 13,904 Horseshoe Mountain

146 13,727 Dallas Peak
Last edited by CheapCigarMan on Mon Mar 08, 2021 4:53 pm, edited 1 time in total.
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Re: Official Source for Summit Elevations

Post by Geckser »

Do we have any idea why Gannet Peak is on this list, while it is a rad peak it is neither taller than 14 thousand feet nor in Colorado? Is it an alternative name for a normal Colorado 14er?
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Re: Official Source for Summit Elevations

Post by CheapCigarMan »

Geckser wrote: Mon Mar 08, 2021 4:52 pm Do we have any idea why Gannet Peak is on this list, while it is a rad peak it is neither taller than 14 thousand feet nor in Colorado? Is it an alternative name for a normal Colorado 14er?
When you look at the coordinates it is the same as Mt. Massive, however it is not the exact coordinate, but I believe instead of naming it Gannet Peak they named it Mt. Massive or perhaps they named a bump on Mt. Massive.
Here is the link and history.

https://geonames.usgs.gov/apex/f?p=138: ... 0Official)

"In 1916 the BGN approved the name Gannett Peak for the highest point on Mount Massive. The name was published on a USGS topographic map in 1921. However, citing subsequent objections, including a House Joint Resolution, the BGN decided in 1922 to vacate the decision. The name Gannett Peak was applied to a peak in Wyoming instead."
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Re: Official Source for Summit Elevations

Post by Geckser »

Interesting! Apparently Henry Gannet, one of the great American geographers, had the first ascent on Massive. Maybe he marked a different location for the true summit.
No matter the case Mr.Gannet most certainly got a better deal out of the gig by having the high point of the Wind Rivers named after him, rather than Massive.
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Re: Official Source for Summit Elevations

Post by planet54 »

As above.
Screenshot (40).png
Screenshot (40).png (1.62 MiB) Viewed 2305 times
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Re: Official Source for Summit Elevations

Post by CheapCigarMan »

planet54 wrote: Mon Mar 08, 2021 6:03 pm As above.

Screenshot (40).png
History and context are everything.
Thanks for posting the map.
That adds volumes to the discussion.
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Re: Official Source for Summit Elevations

Post by Scott P »

CheapCigarMan wrote: Mon Mar 08, 2021 4:23 pmWhen is the last time they updated their maps? Perhaps they haven't updated their maps in ages but their online data stays relatively current?
There was a thread on this a few weeks ago:

https://www.14ers.com/forum/viewtopic.p ... 5&p=735747
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Re: Official Source for Summit Elevations

Post by Scott P »

CheapCigarMan wrote: Mon Mar 08, 2021 4:23 pm Here are Colorado's top summits from USGS's online search engine.
You are looking at the wrong number. Those are interpolated numbers (EPQS), not the measured spot elevation, nor are they official elevations. They are calculated, not measured. Those will never be accurate as far as the summit of a mountain goes. They are a very useful tool on mountains or any number of infinite locations where there is no spot elevation. If there is a spot elevation, use that.

I'm not sure you understand what those elevations are (but I mean no offense by this). None of those elevations are measured, nor are they claimed to be accuate or spot on.
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Re: Official Source for Summit Elevations

Post by peter303 »

The new 2022 geoid will slightly revise most Colorado elevations 2 feet (60 cm) downward. It replaces a 1988 triangulation-survey geoid with a satellite/gravity based one. This geoid will explicitly tie with GPS.

https://www.ngs.noaa.gov/web/science_ed ... upload.pdf
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Re: Official Source for Summit Elevations

Post by Carl_Healy »

peter303 wrote: Wed Mar 10, 2021 1:07 pm The new 2022 geoid will slightly revise most Colorado elevations 2 feet (60 cm) downward. It replaces a 1988 triangulation-survey geoid with a satellite/gravity based one. This geoid will explicitly tie with GPS.

https://www.ngs.noaa.gov/web/science_ed ... upload.pdf
As I posted in the other topic that Scott P referred above, you can actually go and play with the "beta" versions of the new Geoids now to see exactly how much any one location is expected to change.
Assuming I got the numbers right Sunshine Peak might just barely survive the update and still be above 14,000' orthometric height.
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