Within their catchment basins, brooks and rivers form a structure under which the water flow and morphological processes impact each other. A structure of the flowing water is characterized by such variables as type of substratum, cross-section of the rook channel, longitudinal profile, and horizontal arrangement. Each change in the water flow and intensity of rubble transportation causes the morphology of the brook bed to change, and the direct causes are erosion and deposition processes. The objective of the survey studies presented in this mono-graph was to identify regularities controlling the processes of lateral and deep erosion, transportation, and sedimentation processes in two Carpathian brooks: Słomka and Kasinka. The survey studies were performed in a period from 2004 to 2006.The Słomka brook is a 25.2 km long, left-bank tributary of the Dunajec river and drains an area of 69.90 km2. The Kasinka brook is a right-bank tributary of the Raba river, and it pours into this river at km 92 +750, below the Mszanka brook mouth. The studies comprised both the straight sections of the brook channels and the strongly eroded section along the concave bank (the Kasinka brook). Within the gauging sections, comprehensive measurements were performed in order ...