The geomorphology is an important branch of natural Geography that its goal is promotion of human life, ultimately. The geomorphic processes have considerable impact on human life, and opposing, human activities and behaviors have its impacts on the geomorphologic units and geomorphologic processes, enhancing the above argument. The Gilan county, at its geographic position; embraced by two structural units; the Alborz-Talesh and Caspian sea, appears as a very good open space of morpho-dynamic formations and features. People of this region, on the track of new cultivation and industrial technologic products introduced, initiated a great changes in the Ecosystem, and due to low knowledge of Epigenic flow activities and sea level fluctuations of Caspian sea, they bother toweling and housing in the interior and exterior borders of the sea and rivers. This low knowledge of action and contractions of surrounding natural environment caused huge, bodily and financial damages to them in these hazardous yards.