Kleven (river)

Kleven
Native nameКлевень (Ukrainian)
Location
CountryRussia, Ukraine
RegionBryansk Oblast, Kursk Oblast, Sumy Oblast
Physical characteristics
Source 
  locationnear Sopych
  coordinates51°54′4″N 34°19′19″E / 51.90111°N 34.32194°E / 51.90111; 34.32194
MouthSeym
  coordinates
51°24′3″N 33°35′7″E / 51.40083°N 33.58528°E / 51.40083; 33.58528
Length113 km (70 mi)
Basin size2,660 km2 (1,030 sq mi)
Basin features
ProgressionDnieperDnieper–Bug estuaryBlack Sea

Kleven (Ukrainian: Клевень) is a 113 km (70 mi) long right tributary of the Seym in Russia and Ukraine. It drains a catchment area of 2660 km2 and has a gradient of 0.36 m/km.