Climb library
Famous climbs of cycling
Detailed profiles of the climbs that define the sport — length, average gradient, elevation gain, race history, and pacing advice.
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3815 climbs

Alto de la Viga
28.7 km of relentless climbing at 6.74%, hauling you from 1725 m to 3661 m with a wall of 21.5% waiting to break you.
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Alto Boquerón
28.6 km at 7.8% climbing from 1726 m to 3958 m — a 2232 m net gain with ramps hitting 25.97%.
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Bocchetta di Corna Piana
28.6 km of unrelenting ascent from 416 m to 2049 m, averaging 5.71% with ramps that bite at 22.26%.
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Degollada del Cedro
28.4 km at 7.21%, rising from 74 m to 2126 m — an HC monster with 2052 m of net vertical and a 15.71% sting.
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Passo della Cavegna
28.1 km of relentless climbing at 6.72%, hauling you from 224 m to a 2115 m summit for 1891 m of net gain.
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Col du Piolet
28.1 km at 6.12% averaging, climbing from 753 m to 2470 m — a full 1717 m of net ascent earning its HC rating.
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Alto El Paramo
27.9 km of relentless Andean climbing that gains 1599 m to crest at 3352 m — a genuine HC test at altitude.
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Colle Vallonetto
27.6 km at 6.52% with a 15.41% sting, climbing from 756 m to 2555 m for 1799 m of net gain — pure HC.
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Alto de Choche
A 27.6 km HC monster climbing 1562 m from 1801 m to 3363 m, averaging 5.67% with a punishing 10.59% max.
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Passo di Baldiscio
27.5 km climbing at 7.54% to 2364 m, hauling you 2077 m upward past ramps that spike to a brutal 24.51%.
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Alto del Aire - Caldas
27.4 km at 7.89% average, ramps to 23.12%, and 2163 m of net climbing from 718 m to 2881 m — a genuine HC monster.
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Portes de l'Hiver
27.4 km of relentless climbing at 6.47% average, punching to 27.9% and hauling you from 412 m to a 2184 m summit.
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Colle di Val Fontana
A 27.2 km hors catégorie grind that climbs 1732 m to 2114 m, averaging 6.38% and spiking to a brutal 27.02%.
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Sella di Fonte Tettone
A 27 km hors catégorie grind climbing 1586 m from 66 m to 1652 m at 5.87% average, spiking to 12.63%.
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Alto de Comijoque
Alto de Comijoque is a 28.3 km HC ascent in Colombia with 1,922 m of net gain and a punishing 26.87% maximum ramp.
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Alto de las Torres
A 26.6 km HC monster climbing from 1780 m to 3352 m at 5.9% average, gaining 1572 m with ramps hitting 10.19%.
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Col du Tsan
26.5 km of relentless climbing from 470 m to 2316 m — a 1846 m net gain at 6.97% that ramps to a brutal 20.83%.
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Col de la Chenau
A 26.5 km hors catégorie monster averaging 6.47%, climbing from 388 m to 2102 m with a savage 39.34% pitch and 1887 m of total ascent.
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Alto del Sacrificio
26.3 km at 6.52% average, climbing from 867 m to 2579 m with a savage 38.45% ramp — a full HC test of patience and legs.
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Alto de La Laguna
A relentless HC monster: 26.1 km at 6.89% average, ramping to 11.14%, climbing from 2041 m to a lung-searing 3843 m summit.
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Alto de los Molinos
26.1 km of relentless Colombian climbing, gaining 1767 m at 6.77% with pitches spiking to 23.25% before topping out at 2863 m.
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Alto de Sabanas
26 km at 7.86% averaging into thin air, with a 19.06% wall and 2046 m of net gain to a 2752 m summit.
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Alto del Yerbal
A 26 km HC monster averaging 6.9% and gaining 1796 m to a 2506 m summit, with a ferocious 26.75% max ramp.
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Bocca Casèt
25.7 km at 6.17% with a savage 25.01% pitch, climbing from 59 m to 1645 m — a full HC test of patience and legs.
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