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Peak Pairs, First Ascents, and Unique Peaks for Len Hall

Most significant unique peak pairs by key metrics, first ascents, and all uniquely ascended peaks

Highest Unique Pair of Peaks Climbed

The two highest peaks where only Len Hall has climbed both.

PeakElev-ftLocationAscent DateProm-ft
Pico de Orizaba18491Mexico-Pue/Ver2000-11-2316148
Cerro Cruz de Caña12028Argentina2003-02-09145


Most Prominent Unique Pair of Peaks Climbed

The two most prominent peaks where only Len Hall has climbed both.

PeakProm-ftLocationAscent DateElev-ft
Middle Sister1127USA-OR1999-06-2610047
Prospect Mountain945USA-NH2022-06-072067


Most Isolated Unique Pair of Peaks Climbed

The two most isolated peaks where only Len Hall has climbed both.

PeakIso-miLocationAscent DateElev-ft
Pico de Orizaba1671.58Mexico-Pue/Ver2000-11-2318491
Mount Agamenticus11.89USA-ME2003-09-14691


First Ascents by Len Hall

There are no first ascents for this climber.


All Peaks Climbed only by Len Hall

There are no unique peaks for this climber.



  • The first three peak pairs on this page show the superlative unique pairs for three key metrics: Elevation, Prominence, and Isolation.
  • Most hikers or climbers that log their ascents on have a number of unique peak pairs--a set of two successfully climbed peaks such that no other registed site user has also climbed both.
  • Since virtually no one can claim to have made the only ascent ever of a peak, these peak pairs are a way to claim some uniqueness--being able to say "I am the only one to ever climb both Peak A and Peak B".
  • Many of a hiker's unique peak pairs will be relatively low, minor, or otherwise insignificant peaks, and therefore climbing both may not be a particularly impressive achievement.
  • So the pairs above represent the most significant of all a climber's unique pairs--the most impressive unique pairs to use as a badge of honor.
  • Mathematically, the pairs listed above maximize the value of the secondary peak in the pair--for example, showing the pair that has the highest elevation for the pair's second-highest peak. Put another way, it shows the two highest-value peaks that only this climber has climbed.
  • The final listing shows the peaks (if any) where the hiker/climber is the only ascender with logged ascents.
  • Of course, all these listings are purely based on the logged climbs in the database, so they should not be taken as completely accurate.

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