Why Mountains Cry

The aim of the paper is to clarify the dynamic characteristics of the mudflows taking into account the anomalous nature of the its.Have been established the influence of the particles shapes of the solid phase constituents of the mudflow mixture on the formation of the watercourse bed.After generalizing the determinations and data analysis proposed in the monograph, it is possible to reduce the negative impact of mudflow events, conveniently selecting the location of anti-mudflow construction, which is a prerequisite for protecting fertile land from this dangerous exogenous events.As a result of field observations, the boundary-dynamic equilibrium area of the watercourse has been established, where there is no intensive change in the morphometric characteristics of the bed over time. This allows us to select onti-mudflow events on this area, taking into account economic and environmental factors.The variability of riverbed cross-sections along the entire length of the watercourse is described as polynomial, which allows to determine the volume of the mudflow mixture and to determine the degree of negative impact on its ecological environment.