Cerro Summit

Overview

Cerro Summit is a Category 4 climb in the United States, running 6.8 km from base to top. It gains 248 m of net elevation, starting at 2185 m and topping out at 2433 m. The average gradient sits at 3.66%, which places it firmly in the moderate range on paper.

The numbers hide something, though. While the net elevation gain is 248 m, the total ascent over the full climb is 302 m. That 54 m gap is the tell-tale sign of undulation: the road gives back elevation in dips before clawing it back on the next ramp. In practice, you climb more than the net figure suggests, and the effort is less steady than a single average gradient would imply.

How the Gradient Unfolds

An average of 3.66% suggests a gentle, spinnable grade. It is not the whole story. With a maximum pitch of 10.69%, the steep sections are more than double the average, and the flatter or downhill stretches between them are what drag that average down. Effort comes in bursts rather than a constant load.

Expect the profile to break down roughly like this:

• Flatter and recovery sections where the road eases or briefly descends, pulling the average down
• Repeated short climbs stacked back to back, each requiring a fresh surge
• A steepest ramp touching 10.69%, where gearing and pacing matter most

Pacing Notes

On a steady climb you can hold one number. Here, undulation makes even-speed pacing a trap: chasing a constant speed forces you to spike power on every ramp and coast on every dip, burning matches you will want later. Instead, pace to a target sustainable power output and let your speed rise and fall with the terrain. Push slightly above target on the steep pitches, ease back on the flats, and keep your average effort in check.

If you do not know your ceiling, run the FTP estimator first so your target power is grounded in real data rather than feel.

Gearing

The steepest gradient governs your gearing choice, and 10.69% is steep enough to punish an undergeared setup. Fit a compact or sub-compact chainset paired with a wide-range cassette — a 34×32 or 34×34 gives you a bailout gear to keep cadence up on the ramp without grinding. Check your chainset and cassette before the ride; sorting gearing at the trailhead is not the place to discover you are one cog short.

Summary

• Length: 6.8 km
• Average gradient: 3.66%
• Maximum gradient: 10.69%
• Net elevation gain: 248 m
• Total ascent: 302 m
• Category: 4

Cerro Summit reads easy on its average but rides tougher thanks to 54 m of undulation and a double-digit ramp. Pace to power, gear low enough for the steep pitch, and it becomes a manageable Category 4 rather than a surprise.