Tuco is a high mountain town at an elevation of 4.725m (15,501ft) above the sea level, located in the Andes, in the Cordillera Blanca in northwestern central Peru.
The road to the town, located within the Huascarán National Park, is gravel. It’s called AN844. 4x4 recommended. The climb is simply terrible, with a notorius lack of oxygen that tests the organisms and a high degree of steepness. Most people feel altitude sickness at around 2,500-2,800 meters. Near the town, oxygen is in short supply. Do not travel this road in severe weather conditions. Avalanches, heavy snowfalls and landslides can occur anytime.