A schematic overview of the altitude changes on the Inca Trail. The trail starts around Km 82 along the Urubamba River in a zone that the Peruvians call "Quechua": This zone is between 2300 - 3500m (7,539-11,473 ft) and has temperate, dry weather with average temperatures that range from 0 -210C (32 -700F). The rainy season is from December to March. The rest of the year is dry or even parched from May through September. This region is extensively cultivated and essentially, there is no natural vegetation left.