Alto de La Angostura is a climb of 37.5 kilometers (hors catégorie). Alto de La Angostura tops out at 1,923 m above sea level. It is located in Municipio de Los Sosa, Tucumán, Argentina. The average gradient is 5.6% with a maximum of 13.4%. The climb has 2086 meters of elevation gain.
Difficulty analysis: This 37.5 km HC climb is genuinely hard because of its length and its 2086 m of elevation gain. The 5.6% average gradient is misleading: the profile is very uneven, with punchy stretches at 7-9% between km 13-15, 23-25 and 27-29, broken up by easier sections at 1-3%. The difficulty lies in that alternation, which disrupts your rhythm.
Pacing advice:
1. Find a steady rhythm on the long haul: Use the low-gradient kilometres (1-4%) to recover without slowing down too much, so you keep your average speed stable.
2. Prepare for the steep sections: Know where the sections above 7% are (km 19, 23-24, 28). Ease off the intensity slightly beforehand so you can tackle them at your own pace without blowing up.
3. Manage your effort over the distance: At close to 2h for a good climber, the length of the climb demands strict pacing. Avoid surges and focus on a smooth, efficient pedal stroke.
37.5 km • 2086 m D+
VAM: average climbing speed, based on elevation gain
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