Jump to Map of List PeaksMethod: Clean | Average | Optimistic Winter Ascent Dates only (Help)Show List using U.S. Units (Feet)

Peaks with most Unsuccessful Attempts

Showing Andy Boos's first ascent dates for climbed peaks (21 out of 25, or 84%)

RankPeakAscents Elev-M Location Prom-M Range (Level 3)Ascent Date
1.Aconcagua406962Argentina6962Central Argentina-Chile Andes 
2.Denali576190USA-AK6140Alaska Range 
3.Pico de Orizaba335636Mexico-Pue/Ver4922Cordillera Neovolcanica 
4.Mont Blanc384810France/Italy4697Western Alps 
5.Mount Whitney934419USA-CA3072Sierra Nevada2001-09-07
6.Mount Elbert354399USA-CO2765Southern Rocky Mountains2005-06-02
7.Mount Rainier3324392USA-WA4037Cascade Range1991-06-23
8.Longs Peak494345USA-CO896Southern Rocky Mountains2016-07-28
9.Mount Shasta1504317USA-CA2975Cascade Range1991-07-08
10.Wheeler Peak354011USA-NM1039Southern Rocky Mountains2008-04-30
11.Granite Peak413901USA-MT1451Greater Yellowstone Rockies1995-08-07
12.Mount Adams733742USA-WA2474Cascade Range1988-07-09
13.Mount Hood1393426USA-OR2349Cascade Range1990-06-17
14.San Jacinto Peak333304USA-CA2536Central and Southern California Ranges2008-11-08
15.Mount Baker1053286USA-WA2686Cascade Range1989-05-22
16.Glacier Peak433206USA-WA2285Cascade Range1990-07-21
17.Mount Jefferson353199USA-OR1761Cascade Range2018-07-10
18.Mount San Antonio333068USA-CA1897Central and Southern California Ranges2008-11-09
19.Mount Stuart432870USA-WA1632Cascade Range1990-09-26
20.Mount Shuksan642783USA-WA1344Cascade Range1989-07-09
21.Mount Saint Helens932540USA-WA1394Cascade Range1988-05-08
22.Mount Washington751917USA-NH1874Northern U.S. Appalachians2016-05-12
23.Silver Peak441708USA-WA648Cascade Range1989-11-18
24.McClellan Butte481573USA-WA440Cascade Range1986-09-01
25.Mount Si521274USA-WA79Cascade Range1987-05-07

Front Runners List: Click here to see list completion progress by climbers that log their climbs using

Multiple Ascents Grid: Click here for a grid showing all of Andy Boos's ascents of peaks on this list (including up to 10 rounds of repeats).

Compare Climbers: Click here to compare ascents of up to 5 climbers working on this list.

List Description

This list, like all the other "Usage" lists, will change over time as ascents are entered into the database. This list is automatically recalculated once a day, so a completion of all these peaks is a moving target that may be frustrating for a climber.

The "Ascents" column above show the total number of unsuccessful attempts on a peak logged in the database. Multiple failed attempts by one climber are all counted. However, note that many registered site users do not log their unsuccessful ascents, so this list is not very robust statistically. However, it does give a somewhat interesting picture of some worldwide summit that are perhaps among the most difficult to ascend.

A personal note--I have long maintained that there should be no shame or stigma in an unsuccessful attempt. They are excellent learning experiences and a sign of wise maturity in the mountains. Never climb with someone who has never turned back! And don't be afraid to log your trips where the summit was just not in the cards.


Map Showing Location of Peaks

 = Peaks climbed by Andy Boos   = Unclimbed peaks

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(Map only shows peaks ranked by clean prominence)

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