Alto de la Laguna de los Ontiveros

Alto de la Laguna de los Ontiveros cycling climb profile

Alto de la Laguna de los Ontiveros is a category 2 climb that asks for patience more than violence. At 20.4 km, it is long enough to punish early overpacing, but the 3.37% average gradient tells you this is not a wall-to-wall threshold grind. The defining feature is duration: you are climbing for a long time, gaining 689 m from a start elevation of 1251 m to a summit elevation of 1940 m.

The total ascent is 696 m, only 7 m more than the net elevation gain. That matters. It means the climb is almost entirely uphill in direction, with very little meaningful descending to reset the legs. Even if the slope often feels manageable, the road keeps asking for power.

How the gradient unfolds

With only the full-climb statistics available, the cleanest read is that Alto de la Laguna de los Ontiveros is a low-to-moderate gradient climb with sharper interruptions. The average sits at 3.37%, but the maximum gradient reaches 9.8%, so the effort is unlikely to feel perfectly even. Most of the climb can be ridden in a controlled aerobic rhythm, but the steepest ramps are strong enough to push cadence down and force a real power spike if you arrive overgeared.

That contrast is the tactical point. A climb can average comfortably under four percent and still become costly if the steepest sections are handled badly. The road gives you length first, then punishes impatience through accumulated fatigue and short ramps that feel much harder late than they would at the bottom.

Pacing strategy

Treat the first part as a restraint test. Because the headline gradient looks friendly, it is easy to ride above sustainable power without noticing. On a 20.4 km climb, that mistake compounds. Settle below your hard climbing effort early, keep pressure smooth, and save the bigger accelerations for the ramps that approach the climb’s 9.8% maximum.

If riding by power, anchor the effort around a level you can repeat for a long climb rather than chasing speed changes. If you use /glossary/ftp as a pacing reference, this is the kind of ascent where staying disciplined just under your limit can be faster than surging every time the road steepens.

Gearing notes

Do not gear this climb only for the 3.37% average. Gear it for the combination of length and a 9.8% maximum. Most of the ascent should allow a steady seated cadence, but the steepest ramps justify having a low enough gear to avoid grinding once fatigue builds.

The best setup is one that lets you ride efficiently on shallow gradients while still giving you a bailout gear for the hardest pitches. The climb’s small difference between total ascent and net gain also means there is little recovery built into the profile, so cadence preservation matters. If you are forced into low-cadence torque efforts too early, the final kilometres will feel longer than the numbers suggest.