The results suggest that this catchment is a hydrogeomorphological system whose morphodynamic and hydrological responses are determined by its small area, hillsides and channels with steep slopes at the mountain area, medium drainage density, a 4 order drainage network, mean bifurcation relationship of 4.69, high torrentiality
, the storms dimensions, and intensity and duration of the rains.
Slope processes are the following: gullying, torrentiality
Crystalline rocks are resistant to weathering and alteration; mica-schists easily discompose on the schistosity plans, but they resist to alteration; sedimentary rocks are attacked by dripping, gully formation, torrentiality and landslides.
It has a crucial role in the current morpho-dynamic by reducing or stopping the processes of pluvio-denudation, torrentiality, collapse and sliding.
Besides the heavy rains, the flash floods occurrence was caused by: the rock friability, the high degree of torrentiality
and the nearly circular form of the basin, allowing the fast concentration of liquid and solid flows.
On the Andes' eastern slope, slopes and precipitation torrentiality
impose severe restrictions on reservoir operational life.