Usa (Sura)

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Water code RU08010500112110000035574
location Saratov Oblast , Penza Oblast ( Russia )
River system Volga
Drain over Sura  → Volga  → Caspian Sea
source about 15 km northeast of Basarny Karabulak
52 ° 24 ′ 13 ″  N , 46 ° 33 ′ 0 ″  E
muzzle about 30 km southeast of Penza in the Sura coordinates: 52 ° 59 ′ 17 "  N , 45 ° 20 ′ 38"  E 52 ° 59 ′ 17 "  N , 45 ° 20 ′ 38"  E

length 188 km
Catchment area 5440 km²
location: 38 km above the mouth
2.1 m³ / s
Left tributaries Werschaut , Tschardym , Njanga
Right tributaries Grasnucha , Katschatokomak , Suljajewka
Location of the USA (Уза) in the catchment area of ​​the Sura

Location of the USA (Уза) in the catchment area of ​​the Sura

The Usa ( Russian Уза ) is a 188 km long left tributary of the Sura in the European part of Russia .


The USA rises on the Volga Heights near the Chwatowka settlement in the north of Saratov Oblast . From there it first flows in a westerly and northwestern direction through the intensely agricultural landscape. After about 55 km, it reaches the southeast of Penza Oblast shortly after the confluence of the Grasnucha .

Here it first swings to the west, but after the confluence of the Suljajewka it changes back to north and north-west directions. After Schemyscheika happened and Njanga has taken, it reaches at Ust-Usa the Sura.


The water of the USA is used for drinking and service water supply . It is also a popular destination for boaters .

Individual evidence

  1. a b c d Article USA in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)http: //vorlage_gse.test/1%3D113676~2a%3DUsa~2b%3DUsa
  2. a b Usa in the State Water Register of the Russian Federation (Russian)
  3. Description of the rivers of the Volga Basin in Saratov Oblast ( Memento of the original from February 26, 2013 in the Internet Archive ) Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. on the unofficial business portal (Russian) @1@ 2Template: Webachiv / IABot /
  4. Touristic description of the USA on the touristic website (russ.)