Field guide - IUGS

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Fig. 3.1. Glacial geomorphological sketch map of Locality 3.
There is a band of the 35 km extension and of 300 m width and of 30-40 m height. South-east
of Kolvitsa Lake it joints to the northern ridges of the Vilasselga.
The most part of the southern Vilasselga ridge is represented by the esker of the 70-80 m a.s.l.
with steep (up to 30 0 ) slopes and wide crest (Fig. 3.2). The northern slope is steeper than the
southern one. The boulder accumulations are usual in the ridge surface, especially on the
southern slope and crest.
Fig. 3.2 Glaciofluvial ridge Vilasselga to the west of Kolvitsa Lake (southern view).
The gently inclined terraces are adjacent to the ridge both from the north and south. The
southern slope is partly washed out.