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The vertical zonality of the soil cover of the Verkhoyansk mountainous soil province is discussed. The soils of the landscape-ecological profile in the area of the Arkachan Plateau (65° N, 130° E) have been studied. Their morphogenetic characteristics and position in the new Russian soil classification system are analyzed. The absolute height of the mountains reaches 1200 m, the relative height ranges from 400 to 500 m. The plateau is composed of sandstone, siltstone, and shale of the Mesozoic age. The climate is cold and sharply continental. Permafrost has a continuous character. However, in the profile of mountainous soils, permafrost is often absent, as its upper table lies below the stony soil profile. In the vertical zonality of the Arkachan Plateau, mountainous tundra zone (>1100 m a.s.l.) and mountainous taiga zone (

The soils in the area of the northern pole of cold located on the interfluve between the Yana and Adycha rivers within the spurs of Kisilyakh Ridge included in the mountain system of Cherskii Ridge have been studied for the first time. The profile-genetic approach has been applied to describe the soils and determine their classification position. It is found that the major soil types in this region are the soils of the postlithogenic trunk belonging to the orders of lithozems (Cryic Leptosols), gley soils (Gleyic Skeletic Cryosols), and Al–Fe-humus soils (Spodic Skeletic Cryosols). The ecological ranges of altitudinal zones— the taiga zone with various types of lithozems below 630–700 m a.s.l. and the tundra zone with combinations of gley and nongley cryogenic soils above these heights—have been established. The development of gley or nongley soils is specified by the local orogenic and lithological conditions and slope aspect, which, in turn, control the degree of drainage and the presence and character of permafrost. In the profile of mountainous gley soils (gleyzems) with shallow ice-rich permafrost, cryogenic processes and features typical of the analogues of these soils on plains—cryogenic cracking, cryoturbation, solifluction, thixotropy, oxiaquic features above permafrost, saturation of the soil profile with mobile humus, etc.—are typical.