Show List Using Metric Units

Peak Pairs, First Ascents, and Unique Peaks for Howe Siang Tan

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 Howe Siang Tan has climbed both.

PeakElev-ftLocationAscent DateProm-ft
Nevado Coropuna21014Peru2005-06-227244
Huayna Potosí19974Bolivia2005-06-093898


Most Prominent Unique Pair of Peaks Climbed

The two most prominent peaks where only Howe Siang Tan has climbed both.

PeakProm-ftLocationAscent DateElev-ft
Nevado Coropuna7244Peru2005-06-2221014


Most Isolated Unique Pair of Peaks Climbed

The two most isolated peaks where only Howe Siang Tan has climbed both.

PeakIso-miLocationAscent DateElev-ft
Gunung Rinjani994.6Indonesia2006-05-0812224
Town Hill705.93Bermuda2018-12-03249


First Ascents by Howe Siang Tan

There are no first ascents for this climber.


All Peaks Climbed only by Howe Siang Tan

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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