Glen in Altai
Glen - an element of the terrain, which is a lowland at the foot (at the junction) of neighboring hills or gentle mountains. Usually, a collapse is called a fairly long, from one kilometer, territory that runs between large hills or entire ridges . In rocky terrain, the gorge is an analogue.
Most often, the decay contains abundant vegetation of various kinds, since water flows down from it on the slopes and channels of small rivers or streams form in it. Most of the gleams are obscured by a significant part of the day, which is why the microclimate in them is generally colder than on the neighboring slopes - in the spring the snow lasts the longest in them.