Questions of study of right contiguity of Usoy landslide damming of Sarez Lake

There are many works of foreign and domestic scientists, devoted to the problem of Sarez Lake. There is a huge amount of materials on engineering-geology, geophysics, geodetic and etc. which review various aspects of the Sarez Lake problem. However, no detailed study of Usoy landslide damming and especially its right contiguity, has been carried out. The purpose of the present article is to indicate this problem, determine general conception of investigation and list of urgent activities for investigation of this geological object as independent task within the framework of general problematic of Sarez Lake. Thus determined role of mathematical modeling as an instrument for receiving qualitative assessment of investigated event is stability of right contiguity of Usoy damming.