The Alto de Letras is situated in Caldas.
This climb belongs to the Cordillera Occidental.
The Alto de Letras via Mariquita is ranked number 1 of the Cordillera Occidental.
The maximum slope is 11%.
If you want to climb the Alto de Letras, you can find more information on how to train to climb the Alto de Letras here.
Alto de Letras via Mariquita popularity rank : 1026
The Alto de Letras has been climbed by 2 climbbybikers. It is ranked No. 1026 as the most climbed climb in the world.
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Alto de Letras via Mariquita: 3 reviews
Did Alto with an organized group. Be prepared it is longer and harder than it looks. 4% is deceiving because of a few flats and downhills. Most of the climbing is above 5.5% A couple of steep hairpins just past the 42 mile mark. But still a fantastic climb with ever changing scenery and weather.
Impressive climb across all tropical climatic zones. Start with first light in Mariquita to get out of the heat early enough. Refill your bottles in Fresno (24Km), Padua (40km) and at km60. From here you still have 20km of lonely mountain to go and the altitude adds one dimension more to the challenge. Consider therefore some aclimatization prior to this. Above 3000m you can expect temperatures at 5C and you can be lucky if rainfall does not get you somewhere during this 80km of huge climb. Although the pass is a main road across the central cordillera I was never bothered by traffic (much less then La Linea). Really something unique one cannot find in Europe, both scenery and challenge. Highly recommendable!!!!