Alto de Piedras Largas

Alto de Piedras Largas cycling climb profile

Alto de Piedras Largas is a Colombian category 1 climb that asks for patience more than brute force. The headline numbers are clear: 15.7 km at an average gradient of 5.23%, starting at 2030 m and topping out at 2849 m. That puts the climb firmly in the sustained-effort category, with 819 m of net elevation gain and a listed total ascent of 793 m.

The important detail is the relationship between the average gradient and the maximum gradient. With the steepest pitch listed at 7.57%, this does not profile as a climb built around savage ramps or repeated accelerations. Instead, the difficulty comes from keeping pressure on the pedals for a long time while already riding at elevation. The gradient is hard enough to punish poor pacing, but not steep enough to force constant changes in rhythm.

How the gradient unfolds

From bottom to summit, the data points to a relatively controlled ascent. A 5.23% average over 15.7 km means the climb should feel rideable at first, especially if the opening kilometres are taken too aggressively. That is also the trap. On a climb this long, a moderate gradient can invite riders to settle above their sustainable power because the road never feels brutally steep.

The maximum gradient of 7.57% suggests the hardest sections are still manageable with sensible gearing. They are not likely to decide the climb on their own, but they can expose riders who have been riding over threshold too early. Treat any steeper pitches as places to protect cadence and breathing, not as moments to force speed.

Pacing and gearing notes

The best approach is a controlled, even effort. If riding by power, anchor the first part below your target climbing intensity and only build once the summit effort is clearly under control. For riders using perceived effort, the key signal is breathing: it should feel purposeful but not urgent early on. If the climb feels too easy at the bottom, that is probably a good sign.

Because the climb starts at 2030 m and finishes at 2849 m, pacing should account for the altitude. Even without extreme gradients, the upper part can feel more expensive than the profile suggests. This is where riders who have stayed smooth tend to gain time without making a dramatic attack.

Gearing should favor cadence security over top-end speed. A compact or climbing-friendly setup makes sense, not because the gradient is extreme, but because 15.7 km of continuous climbing at elevation rewards efficiency. If you are estimating sustainable output, use your /glossary/ftp as a ceiling rather than a target from the start.

Bottom line

Alto de Piedras Largas is a steady, high-altitude Colombian climb where the winning ride is usually the least emotional one. Respect the length, keep the early kilometres controlled, and save the harder pressure for the final approach to 2849 m.