
Alto de La Yareta
Alto de La Yareta is a long Chilean category 1 climb: 37.3 km at 4.29%, rising from 529 m to 2128 m, with a severe 27.68% maximum gradient.
- Length
- 37.3km
- Avg
- 4.3%
- Max
- 27.7%
- Summit
- 2,128m
- Ascent
- 1,566m
The climb
Gradient profile
Alto de La Yareta cycling climb profile
Alto de La Yareta is not defined by a savage average gradient. It is defined by duration, elevation gain, and the gap between the average and the steepest pitch. On paper, the climb runs for 37.3 km at 4.29%, starting at 529 m and topping out at 2128 m. That makes it a category 1 ascent with 1599 m of net elevation gain, but the key number for how it rides is the 27.68% maximum gradient.
That spread tells you the climb is unlikely to feel like a metronomic 4.29% drag from bottom to summit. A climb with this length and that maximum gradient asks for two different skill sets: steady aerobic control for the bulk of the ascent, and enough torque, gearing, and restraint to survive the steepest ramps without burning through the ride too early.
How the gradient shapes the effort
The average gradient is moderate, but over 37.3 km it still creates a long time under load. The danger is psychological as much as physiological. Riders can look at 4.29% and start too confidently, only to find that the total vertical rise and isolated steep sections make the second half feel much heavier than the headline number suggests.
The 27.68% maximum gradient is the warning label. Even if that pitch is brief, it changes the way the climb should be paced. You need to arrive at the steepest ramps with enough muscular reserve to keep the bike moving smoothly. If you ride the early kilometres near /glossary/ftp, the later surges above threshold become expensive very quickly.
Pacing strategy
Treat Alto de La Yareta as an endurance climb first and a steep climb second. The correct opening effort is controlled, not ambitious. The long distance means small over-pacing mistakes compound, while the maximum gradient means there may be moments where effort spikes are unavoidable.
A sensible approach is to hold a sustainable aerobic rhythm on the steadier sections, keep pressure light through any easier ground, and avoid chasing speed when the gradient relaxes. Save the hard efforts for where the road forces them. On a climb this long, the goal is not to make every shallow section fast. It is to avoid arriving at the steepest pitches already committed.
Gearing and ride feel
Bring true climbing gears. The 4.29% average might tempt a rider into under-gearing the bike, but the 27.68% maximum gradient argues strongly for a bailout option. Spinning comfortably on the moderate sections matters less than having a gear that lets you stay seated, keep traction, and avoid grinding when the road kicks hard.
The climb starts at 529 m and finishes at 2128 m, so the final elevation is materially higher than the base. That does not need to change the whole pacing plan, but it reinforces the same conclusion: ride within yourself early, fuel before you feel desperate, and keep the cadence sustainable rather than heroic.
Alto de La Yareta is a climb where the average gradient understates the challenge. Respect the length, respect the steepest pitch, and use the opening kilometres to set up the summit rather than prove form too soon.