Alto de Berlín is a climb of 25.5 kilometers (hors catégorie). The climb finishes at 3,453 m above sea level. It is located in Tona, Santander, Colombia. The average gradient is 9.1% with a maximum of 15.8%. The climb has 2324 meters of elevation gain.
Difficulty analysis: At 25.5 km, with an average gradient of 9.1% and 2324 m of elevation gain, the Alto de Berlín from Arnanía is a beyond-category climb with relentless steepness. The profile leaves little respite: only km 0-1 and 3-4, at 3%, offer any real breather. From km 12 onward, no section drops below 7%, and the 12-13, 16-17 and 22-23 stretches hit 12%. The difficulty therefore lies mostly in the duration and consistency of the effort.
Tips for managing your effort:
1. Pace yourself from the bottom. Don't let the easy 3% of the opening kilometers go to your head. Hold a steady rhythm before the ramp up to 6% at km 1-2.
2. Prepare for the 12% sections. Tackle the 12-13, 16-17 and 22-23 stretches seated, with a smooth cadence and a gear light enough that you don't grind your way up.
3. Save something for the finish. After the 7% section at km 23-24, the final kilometers at 10% still demand power, so don't empty the tank before the summit.
25.5 km • 2324 m D+
VAM: average climbing speed, based on elevation gain
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