Niangua River

Niangua River
Map of the Osage River watershed showing the Niangua River
Location
CountryUnited States
StateMissouri
Physical characteristics
Source 
  locationWebster County, Missouri
  coordinates37°26′46″N 92°55′11″W / 37.44611°N 92.91972°W / 37.44611; -92.91972
  elevation1,136 ft (346 m)
MouthLake of the Ozarks
  location
Camden County, Missouri
  coordinates
37°57′39″N 92°48′22″W / 37.96083°N 92.80611°W / 37.96083; -92.80611
  elevation
663 ft (202 m)
Length125 mi (201 km)
Basin size1,040 sq mi (2,700 km2)
Discharge 
  locationUSGS 06923950 at Tunnel Dam near Macks Creek, MO
  average450 cu ft/s (13 m3/s)
  minimum0 cu ft/s (0 m3/s)
  maximum27,700 cu ft/s (780 m3/s)
Basin features
Tributaries 
  leftLittle Niangua River
WatershedsNiangua-Osage-Missouri-Mississippi

The Niangua River /nˈæŋɡwə/ is a 125-mile-long (201 km) tributary of the Osage River in the Ozarks region of southern and central Missouri in the United States. Via the Osage and Missouri rivers it is part of the watershed of the Mississippi River.

Niangua River has the name of Niangua (or Nehemgar), an Indian tribal leader. The name is said to mean "bear".