The river is located in the ecological zone of the Peruvian Yungas, or Ceja de Selva ("eyebrow of the jungle"), the transition zone between the low jungles of the Amazon Basin and the Andes highlands.
The river lies within the ecological region known as the Peruvian Yungas, also called the "Eyebrow of the Jungle," which marks the boundary between the lower jungles of the Amazon Basin and the Andean highlands.