From the foot of the volcano Purace, near the source of the Cauca and on one of its small tributaries, 5712 ft.
Its situation is singularly picturesque, the Purace rising to an elevation of 15,420 ft.
There are hot sulphurous springs near by on the flanks of the volcano Purace, especially at Coconuco, which are much frequented by Colombians.
The principal summits of this range areTajumbina 03534 ft.), Pan de Azucar (15,978 ft.), Purace (15,420 ft.), Sotara (15,420 ft.), Huila over 18,000 ft.), Tolima (18,432 ft.), Santa Isabel (16,700 ft.), Ruiz and Mesa de Herveo (18,300 ft.).
This is especially true of the Rio Vinagre, which rises on the Purace volcano.
Farther north is the volcano Purace, which presents a height of 16,000 ft.; then come Huila (18,000), Santa Catalina (16,170), and Tolima (18,400), Santa Isabel (16,760), Ruiz (17,390) and Hervas (18,340).