The width of the river and dams in the area up to Cape Kholyavintsy ranges from 10 to 15 steps. Below to the mouth from 3'/w to 30 fathoms. The depth of the internal dams ranges from 1 to 1'/ arshin. The speed is current! I am 1-1'/" feet. per second. There are a lot of dams on the river. Their sizes are very different; in some places they occupy the entire width of the valley. The depth of many is more than a fathom. The bottom is generally sandy, sometimes sandy-silty. The banks are mostly flat, from Cape Kholyavintsy to the village. Stadnitsa they are completely swampy, and below the mouth they are a continuous swamp.
There are 16 crossings in total on the river. Of these, three are railway bridges, two wooden bridges and 11| mill earthen dams. The construction of new crossings is made difficult by the mass of dams and swampy banks. In general, the river, with its abundance of dams and swampy valleys, poses a serious obstacle to artillery and convoys, and in the area of the Kholyavintsy metro station and pkhota can cross it into crossings only in winter. There is only one good crossing here - the railway bridge. The gums freeze in December. Opens at the end of March. The spill begins in April and lasts up to 3 weeks.
In the r. Many tributaries flow into the Desna. They are insignificant in size, but they flow in narrow valleys with steep banks, making the entire terrain through which they flow extremely crowded and inconvenient for the movement of artillery and convoys, and in some places even infantry. Between the river Lesnaya and r. The Southern Bug flows into several small tributaries, which can hinder the movement of troops due to the steepness of the slopes near their valleys, and in wet weather, their swampiness. In dry weather they are generally of very little importance.
R$ka Sob. (Lion tributary of the river Yuzhnalyu Bush).
The source is near the village. Zozov. To Cape Dashev flow to the southeast, further to the mouth at Cape Ladyzhina to the southwest. Length—921" versts. $
Until the village Paryevka, the steepness of the banks is always significant and can impede the movement of artillery and convoys. Commanded from the source to the village. Kamenka and from Troshcha to Paryevka is indifferent, at Kamenka the right one commands, further to the village. Troshchi - the left bank. The soil is clayey. From the village Partevki to the village. Rachny commands the right bank. The right bank is steep. The steepness of the slopes can impede the movement of artillery to some extent. The left one is long and flat throughout. The soil on the right bank is loam, on the left bank it is mouth of the river Soroki chernozem with sand, and dalfe up to the village. Rachny is clean, sometimes there is free-flowing sand. Significant forest groups on the right bank to the south of the village. Koshevka to the village. Rachny, on the left from the village. Parevka lo s. Soroki, from the sugar factory to Kamenogorodka and from the confluence of the river. Magpies to Rachna. In other areas, the banks are open, partly occupied by villages, partly plowed. From the village The steepness of the rachna to the mouth is insignificant. From the village Rachny to Kun's command belongs to the right, far to the mouth is indifferent. The soil is chernozem and loam; granite is often exposed from Cape Kuna to the mouth.