
Puerto de Caldera
A measured look at Puerto de Caldera, a short Chilean category 4 climb with a steady, shallow gradient and little need for aggressive gearing.
- Lunghezza
- 4.6km
- Media
- 3.3%
- Max
- 4.1%
- Vetta
- 188m
- Dislivello
- 133m
La salita
Profilo altimetrico
Puerto de Caldera cycling climb profile
Puerto de Caldera is not a climb that wins by force. It is short, shallow, and controlled: 4.6 km at an average gradient of 3.31%, rising from 35 m to 188 m. With 153 m of net elevation gain and a maximum gradient of 4.06%, this is a category 4 climb that rewards steady pressure more than climbing-specific explosiveness.
The key point is the narrow gap between the average gradient and the maximum gradient. When a climb averages 3.31% and never goes beyond 4.06%, there is not much room for major ramps, sharp pitches, or rhythm-breaking walls. The road may still feel exposed or draggy depending on conditions, but from the numbers alone, Puerto de Caldera is a sustained false-flat style ascent rather than a decisive mountain test.
How the gradient unfolds
The profile should be read as a gradual rise from bottom to summit. Starting close to sea level at 35 m and topping out at 188 m, the climb gains elevation without ever becoming steep. That makes it easy to underestimate early, especially because the first sensations on a low-gradient climb can feel almost flat if there is speed in the legs.
But the trap on a climb like this is not the gradient. It is the duration of pressure. At 4.6 km, the ascent is long enough that riding above a sustainable effort early will still carry a cost by the top, even if the slope never looks intimidating. The best ride is usually built around keeping speed high without letting the effort creep into repeated surges.
Pacing and gearing notes
Treat Puerto de Caldera as a power management climb. If riding with a power meter, settle into a controlled effort relative to your FTP, then resist the urge to chase every small change in speed. On gradients this mild, speed responds quickly to wind, road surface, and position, so pacing by feel or power will be more reliable than pacing by speed alone.
Gearing should be straightforward for most road riders. The maximum gradient of 4.06% means there is little need for very low climbing gears unless you prefer a high-cadence style, are carrying extra load, or are riding into difficult conditions. The practical goal is to stay seated, keep the chain in an efficient line, and hold a gear that lets you apply pressure without rocking or grinding.
How to ride it well
The fastest way over Puerto de Caldera is likely the least dramatic one: enter smoothly, hold momentum, and avoid turning the climb into a series of accelerations. Because the gradient is modest, aerodynamic discipline still matters. Staying compact and steady can be just as important as finding a lighter gear.
For training, this is a useful climb for tempo work, controlled threshold preparation, or practicing even pacing on shallow gradients. For racing or fast group riding, it is unlikely to create separation through steepness alone, so any selection would come from sustained speed, positioning, or fatigue already built before the climb.