Collado Ancho

Overview

Collado Ancho is a category 3 climb in Spain, running 8.5 km from a start elevation of 211 m to a summit at 536 m. Over that distance it delivers a net elevation gain of 325 m. On paper that reads as a moderate, mid-length effort, and the category confirms it sits below the marquee ascents while still asking real work of your legs.

The number that reshapes the picture is total ascent. While the net gain is 325 m, the total ascent is 621 m. That 296 m difference is climbing you do and then give back to descents and false flats along the way. This is an undulating road, not a steady drag, so the effort is spikier than the average suggests and you will pay for every dip you have to re-climb.

How the Gradient Unfolds

The average gradient of 3.82% is close to meaningless on a road like this. It is the arithmetic result of pitches that climb hard, sections that flatten, and stretches that drop away, all blended together. The steepest ramp reaches 14.57%, roughly four times the average, so the difficulty is concentrated rather than distributed.

• Flatter and recovery sections where the road eases or tips downhill, letting the average sit low
• Repeated short climbs that account for the 296 m of ascent beyond the net gain
• A steepest ramp at 14.57% that will force a gear change and a shift out of the saddle

Pacing Notes

Do not pace this climb by speed. On an undulating profile, holding an even speed means overcooking the steep pitches and coasting the flats, which wastes energy exactly where you need it. Instead, pace by effort. Anchor your climbing to your sustainable power output and let your speed rise and fall with the terrain: back off slightly into the flats and downhills, hold steady through the 14.57% ramp without spiking into the red. If you do not know your current numbers, run the FTP estimator before you plan your effort targets.

Gearing

The steepest gradient governs your gear choice, and 14.57% is steep enough to demand low gearing even on a category 3. Fit a compact or sub-compact chainset and pair it with a wide-range cassette, something like a 34x32 or 34x34, so you can keep a workable cadence when the road ramps up. Grinding a big gear over the pitch will drain you for the rolling sections that follow. Check your setup before the ride rather than discovering you are over-geared halfway up.

Summary

• Length: 8.5 km
• Average gradient: 3.82%
• Maximum gradient: 14.57%
• Net elevation gain: 325 m
• Total ascent: 621 m
• Category: 3

Collado Ancho rewards riders who read the profile rather than the average. Pace by effort, gear for the steep ramp, and treat the 296 m of hidden ascent as the true measure of the day.