The most raised part of the Sredne-Siberian plateau - mountains Putorana on which takes place a route. As mountains Putorana consider a basalt plateau on northwest suburb of the Sredne-Siberian plateau. It is stretched from an Arctic circle almost to 71® these and from 88® to 101® century д. (More than 500 km). In these limits the area of a province of Putorana makes 284000 клг. The average height of mountains 900 - 1200 m, and the highest - 1701 m is in their central part. The most typical line of mountains Putorana - a combination платообразных the levelled surfaces of hills and deep lake hollows, and also river valleys with каньонистыми coast. Differences in height 800 - 1000 m. In the west are most extended, the north and the east the basalt plateau breaks sharp ledges to 300 - 500 m of height to Western-Siberian and North Siberian plain and to a calcareous Kotujsky plateau. To the plateau south smoothly goes down, gradually passing to the general level of plateau with heights 500 - 700 m.        After a canyon the valley represents some almost horizontal terraces terminating in abrupt rocky breakages (10-15). But these breakages are covered by snow and we go down from them on skis (a steepness of slopes 30-35®). Having passed such 3-4 terraces of 150-200 m (ф.58, 59) have approached to edge of a huge canyon depth.
      After visual survey it became clear that to pass a canyon "from a course" it will not be possible, and detailed investigation is required. Therefore we decide to operate as follows: two, taking necessary special equipment (cats, ледорубы, осн. A cord, крючья, carbines and other) have gone on descent investigation in a canyon, and other five persons - put tent and make a supper.
      On the left side on top along a canyon the snow terrace of 50-70 m in width which passes in an abrupt snow slope (40-50®), going down to an exit from a canyon lasts (ф.60). On this snow slope fresh avalanche carrying out is visible, therefore to go down here extremely dangerously.