 In the southern section of the park, there is an area of highland swamps, at 1400 m of elevation.At the northern end of the park, the Huallaga river opens a water gap in the mountain range, east of Chazuta, this feature is known as Pongo de Aguirre.Montane forests cover most of the park's area, although it also includes sections of dry forest to the west and lowland Amazon rainforest to the east.