Gonam River

BW

Location of Gonam ( Гонам ) in the catchment area of the Aldan

The Gonam (Russian Гонам; Yakut Гуонаам, Guonaam; headwaters also Monam ) is a 686 km long left tributary of the Utschur in eastern Siberia (Russia, Asia).

Course

The Gonam rises in about 1300 m altitude at 1620 m high mountain Tiptūr on the main ridge of the Stanowoigebirges. The source is located in the south of the Republic of Sakha ( Yakutia), near the border with the Amur Oblast, located in the well 80 km southwest of the city Tynda on the Baikal - Amur Mainline (BAM ). In the upper reaches of the Gonam flows through a wide valley north of the meandering Stanovoi main ridge in an easterly to northeasterly direction. After several dozen kilometers, the valley narrows and the Gonam flows to its mouth while maintaining the overall direction ostnordöstlichen mostly in wide arcs, the Aldanhochland. Especially at the lower middle part there are a plurality of rapids. The river is in estuary near more than 300 meters wide and two meters deep, and the flow rate is there 1.6 m / s

The most important tributaries are Sutam (length 351 km ), arbor - Tschaidach, Ningam and Algama ( 426 km ) from the right and the Ytymdscha (121 km, also Intimdi ) from the left. In the catchment area there are about 1800 lakes, mainly in the area of ​​the headwaters of the Gonam and its tributaries.

From the mouth of Algama in the Gonam Gonam to the mouth of the Utschur there are only about two miles; on this section of the river marks the border between the Republic of Sakha and the Khabarovsk region.

Hydrology

The catchment area of ​​55,600 km ² Gonam covers.

The river freezes from late October to mid-May.

Use and infrastructure

The lower reaches of the Gonam (below the rapids ) is conditionally navigable, however, is not considered as inland waterways.

The -carrying area is largely under the administration of the city Nerjungri, heard only in the lower reaches Ulus ( Rajon ) Aldan and is virtually uninhabited. Riverside and in its vicinity there are no towns. The overflow is reached by an infrastructure that extends from the settlement of Nagorno at about 50 km as the crow on the Amur - Yakut Magistrale and her following highway M56 and served the exploration and exploitation of gold deposits in the area. Otherwise, any transport infrastructure is missing.

History

From Gonam from where he left a part of his people, the Cossack Vasili Poyarkov crossed in winter 1643/44 the Stanowoigebirge and the first to reach the Russian Amurbecken.