It is based on the provinces of Napo and Orellana, its difficult access not allowed human settlement in its interior, which has contributed to keep intact the ecosystem. UNESCO made it clear in 2000 as a World Biosphere Reserve.
It includes the Sumaco and Pan de Azúcar volcanoes, as well as the Black and Galeras hills (Valarezo et al., 2002). It is made up of two mountain systems isolated from the Andes: the Sumaco volcano massif and the Galeras mountain range (Freile and Santander 2005).
Source:
- SAMANA, Tourist Guide for Travelers. Editorial Ecuatoriana. Quito, February 2010.
-http: //www.ambiente.gob.ec/parque-nacional-sumaco/
The main access routes are: Baeza-El Chaco-Reventador, which surrounds the western part of the Park; And the Jondachi-Loreto-Coca, that surrounds the Park by its south zone.