Alto de La Marta, from Puente Polea, through Alto de Bustantigo.

The Alto de La Marta, from Puente Polea, through Alto de Bustantigo., located in the Asturias region, is one of the most demanding climbs in the world. With a total length of 25.02 kilometers and an average gradient of 4.08%, this climb challenges even the most experienced cyclists.

Why Ride the Alto de La Marta, from Puente Polea, through Alto de Bustantigo.?

The Alto de La Marta, from Puente Polea, through Alto de Bustantigo. is a true test of strength and endurance. Known for its steep gradients and long ascent, this climb has earned its HC category rating, pushing cyclists to their absolute limits. Rising from 94 meters to 1113 meters, it provides an epic climb of 1020 meters over 25.02 kilometers.

Cycling Tips

Make sure you're prepared for this extreme challenge with plenty of water, nutrition, and mental strength. The consistent incline and high altitude make this one of the hardest climbs you'll encounter.