Alto De Mogotes

Overview

Alto De Mogotes is a climb built on sheer duration. Over 29.8 km it lifts you from 1099 m to a summit of 3244 m, a net elevation gain of 2145 m at an average gradient of 7.2%. Rated HC — hors catégorie, the hardest classification above categories 1, 2, 3, and 4 — this is a climb where the challenge is not a single wall but the relentless accumulation of vertical metres. With 2113 m of total ascent packed into nearly thirty kilometres, there is almost no respite: the road tips up and simply keeps climbing.

How the Gradient Unfolds

The headline average of 7.2% is punishing precisely because it holds for so long. On a short climb, 7.2% is a manageable rhythm; sustained across 29.8 km it becomes an exercise in damage control. The maximum gradient of 11.31% marks the steepest ramps, and because the average sits at 7.2%, gentler stretches must balance those hard pitches — but "gentler" here still means steady, grinding uphill work. The gap between the net gain of 2145 m and the total ascent of 2113 m is small, which tells you the climb runs almost entirely one direction: up, with barely any false flat or downhill to reset your legs.

Pacing Notes

On a climb this long, pacing is everything. The temptation to push on the early slopes will cost you dearly near the 3244 m summit, where thin air compounds fatigue. Ride to your FTP and hold a sustainable percentage of it rather than chasing the steep sections. A sensible target on an HC effort of this length is to sit comfortably below threshold and reserve headroom for the 11.31% ramps, letting the gradient — not your ego — dictate output.

If you don't know your threshold power, estimate it first with the FTP estimator, then work backward to a wattage you can defend for the full 29.8 km. Above 3000 m your usable power drops, so plan to finish softer than you started. Fuel early and often; nearly 2145 m of climbing burns through reserves long before the top.

Gearing

Gearing should be chosen for the long haul, not the average. A compact 34-tooth inner chainring paired with a wide cassette is the baseline. A 34×32 gives most riders a workable low gear for the 7.2% sustained sections, but on the 11.31% pitches — late in a 29.8 km climb, at altitude — a 34×34 buys you crucial extra cadence and preserves your legs. If your derailleur can handle it, favour the 34×34. Spinning a lower gear at higher cadence is far kinder over 2113 m of ascent than muscling a tall one.

Summary

Alto De Mogotes rewards patience, disciplined pacing, and gearing chosen for endurance rather than bravado. Respect the distance, meter your effort against threshold, and the 3244 m summit is within reach.

Length: 29.8 km
Average gradient: 7.2%
Max gradient: 11.31%
Start: 1099 m
Summit: 3244 m
Net gain: 2145 m
Total ascent: 2113 m
Category: HC