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Peak Pairs, First Ascents, and Unique Peaks for Chad Thomas

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 Chad Thomas has climbed both.

PeakElev-ftLocationAscent DateProm-ft
White Mountains Peak 1390813908USA-CA2020-06-19 d148


Most Prominent Unique Pair of Peaks Climbed

The two most prominent peaks where only Chad Thomas has climbed both.

PeakProm-ftLocationAscent DateElev-ft
Mauna Kea13796USA-HI2003-11-3013796
Doi Pha Hom Pok4823Thailand2012-12-307497


Most Isolated Unique Pair of Peaks Climbed

The two most isolated peaks where only Chad Thomas has climbed both.

PeakIso-miLocationAscent DateElev-ft
Phu Soai Dao143.87Thailand/Laos2022-12-146955
Cheaha Mountain106.72USA-AL2021-05-23 a2405


First Ascents by Chad Thomas

There are no first ascents for this climber.


All Peaks Climbed only by Chad Thomas

These peaks have their single logged ascent by Chad Thomas. Of course, it is entirely likely that many non-site users have also climbed these peaks.

PeakElev-ftLocationAscent DateProm-ft
Peak 1257312573USA-CA2010-09-19333
Sifford Mountain7408USA-CA2015-05-25728
Crystal Cliffs7520USA-CA2015-06-12156
Pilot Mountain7160USA-CA2015-06-13560
Cluster Lakes Peak6960USA-CA2015-07-26360
Crescent Crater8621USA-CA2016-05-13181
Khao Daowadung587Thailand2022-09-10423
Khao Nor781Thailand2022-09-16617



  • 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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