Kwisa

Kwisa
Confluence of Kwisa and Bóbr
Location
CountryPoland
RegionLower Silesian Voivodeship,
Lubusz Voivodeship
Physical characteristics
SourceIzerskie Garby, Jizera Mountains
50°51′8″N 15°24′9″E / 50.85222°N 15.40250°E / 50.85222; 15.40250
MouthBóbr at Żelisław
51°34′33″N 15°23′39″E / 51.57583°N 15.39417°E / 51.57583; 15.39417
Length127 km (79 mi)
Basin size1,026 km2 (396 sq mi)
Basin features
ProgressionBóbrOderBaltic Sea

The Kwisa [ˈkfʲisa] (German: Queis, Upper Sorbian: Hwizdź, pronounced [ˈhwʲistʃ]) is a river in south-western Poland, a left tributary of the Bóbr, which itself is a left tributary of the Oder river.

It rises in the Jizera Mountains, part of the Western Sudetes range, where it runs along the border with the Czech Republic. At the slope of the Smrk massif it turns northwards, flowing along the towns of Świeradów-Zdrój, Mirsk, Gryfów Śląski, Leśna, where it is dammed at the Lake Leśnia reservoir, to Lubań, Nowogrodziec and Kliczków. It finally joins the Bóbr river approximately 2 kilometres (1.2 mi) north-west of Małomice and 5 km (3.1 mi) south-east of Żagań. For most of its length it is in Lower Silesian Voivodeship, but it also flows through Lubusz Voivodeship for several kilometres before reaching its mouth.