Poroquingua

Overview

Poroquingua is a hors catégorie giant, the kind of climb that measures your patience as much as your legs. Over 30.6 km it lifts you from 2896 m at the base to a summit of 4910 m, a net gain of 2014 m of thin mountain air. The average gradient of 6.59% sounds civil on paper, but stretched across more than thirty kilometres it becomes a relentless, grinding effort where the road simply never lets you rest. Add in the total ascent of 2021 m — slightly more than the net figure, meaning the climb gives back a few metres before clawing them straight back — and you have one of the longest sustained ascents a rider can face.

How the Gradient Unfolds

The headline number is 6.59%, but averages hide the story. With a maximum pitch of 17.9%, Poroquingua is not a smooth escalator. That 17.9% spike is nearly three times the average, so expect stretches where the road rears up viciously and forces you out of rhythm. The small gap between the net gain of 2014 m and the total ascent of 2021 m — just 7 m — tells you this is an honest climb: almost every metre you pedal is a metre gained. There is very little descending to recover on. Instead, the difficulty compounds. The first two-thirds soften you up, and the final third, already above the height where most climbs finish entirely, is where the 6.59% average bites hardest against a background of ever-thinner air on the way to 4910 m.

Pacing Notes

At 30.6 km this is an exercise in restraint. Ride the opening kilometres well below your FTP — the climb is far too long to attack early, and every match you burn low down will be missing near the summit. Because you finish above 4900 m, thin air will drag your sustainable power downward as you climb, so the effort that feels easy at 2896 m may feel maximal near the top. Settle into a steady tempo, protect a small buffer for the 17.9% ramps, and let the mountain come to you. If you do not know your threshold, run the numbers through the FTP estimator before you go, then aim to spend most of the 2014 m of climbing just under that ceiling.

Gearing

Gear for survival, not for glory. On a 30.6 km climb averaging 6.59% with 17.9% maximums, spinning matters far more than pushing. A compact 34-tooth chainring paired with a wide cassette is the sensible baseline: a 34×32 gives most fit riders enough range for the steady sections, while a 34×34 is worth fitting for the steepest ramps and the oxygen-starved final metres toward 4910 m. On a climb this long, the extra sprocket is cheap insurance against blowing up.

Summary

Poroquingua rewards humility. Respect the length, ride within yourself early, gear low, and the 2014 m of climbing becomes a rhythm rather than a battle. Get greedy and the 17.9% ramps at altitude will end your day.

Length: 30.6 km
Average gradient: 6.59%
Max gradient: 17.9%
Start: 2896 m
Summit: 4910 m
Net gain: 2014 m
Total ascent: 2021 m
Category: HC